Neonatal Outcomes AI Prediction using Multimodal Trajectory Database

Programming environment

Load raw data

Table 1. Raw data names and paths.

name	path
demographic_surfactant_growth	inst/extdata/2011-202312_GA_22-30_838/0_Demographic+surfactant+Growth_838_DR_Su_20240813.xlsx
ventilation_breathing_o2_daily_42d	inst/extdata/2011-202312_GA_22-30_838/1_Ventilation 1_呼吸與氧氣_42d_daily_838_DR_Su_20240813.xlsx
ventilation_breathing_o2_steroid_6w	inst/extdata/2011-202312_GA_22-30_838/1_Ventilation 2_呼吸與氧氣_steroid_6w_838_DR_Su_20240813.xlsx
hemodynamics_42d	inst/extdata/2011-202312_GA_22-30_838/2_Hemodynamics_42d_838_DR_Su_20240813.xlsx
infection_42d	inst/extdata/2011-202312_GA_22-30_838/3_Infection 1_42d_838_DR_Su_20240813.xlsx
gi_tract_feeding_42d	inst/extdata/2011-202312_GA_22-30_838/4_Gl_tract1_feeding_42d_DR_Su_20240813.xlsx
growth_hc_bw_6w	inst/extdata/2011-202312_GA_22-30_838/5_Growth2_HC_BW_6w_838_DR_Su_20240813.xlsx
morbidities_42d	inst/extdata/2011-202312_GA_22-30_838/6_Morbidities1_42day_838_DR_Su_20240813.xlsx
outcomes	inst/extdata/2011-202312_GA_22-30_838/7_Outcome_Morbidity_Outcomes_838_DR_Su_20240813.xlsx

Data preprocessing

Data cleaning

Table 2. Raw data old and new column names.

table	old_colname	new_colname
demographic_surfactant_growth	ID	id
	Family_Socioeconomic_status	socioeconomic_status
	Maternal_education_level	education_status
	Maternal_age	maternal_age
	IVF	ivf
	Preeclampsia	pe
	Gestational_diabetes	gdm
	CS	cs
	Gravida	gravida
	BBW	bbw_g
	GA	ga_wk
	Male	sex
	Multiple_gestation	multiple_gestation
	AS1	as1
	AS5	as5
	Resuscitation_at_birth	resuscitation_at_birth
	birthtime_scoring	birthtime_scoring
	Antenatal_steroid	steroid_antenatal
	Chorioamnionitis	chorioamnionitis
	surfactant	surfactant
	BBWZ	bbw_z
	BHCZ	bhc_z
ventilation_breathing_o2_daily_42d	ID	id
	Age_D	t_day
	Resp_Support_raw	resp_supp_raw
	FiO2_raw	fio2_raw
ventilation_breathing_o2_steroid_6w	ID	id
	GA	ga_wk
	Age_W	t_wk
	Cumulative_Aggressive_Resp_Support_days_QW	resp_supp_agg_cum_day_qw
	Cumulative_FiO2_Support_days_QW	fio2_cum_day_qw
	Cumulative_FiO2_Support_concentration_QW	fio2_cum_level_qw
	Cumulative_Aggressive_Resp_Support_percentile	resp_supp_agg_cum_day_pct
	Cumulative_FiO2_days_percentile	fio2_cum_day_pct
	Cumulative_FiO2_concentration_percentile	fio2_cum_level_pct
	postnatal_steroid	steroid_postnatal
hemodynamics_42d	ID	id
	Age_D	t_day
	Inotropic	inotropic
	Blood_Volume	blood_volume
	Transfusion	transfusion
infection_42d	ID	id
	Age_D	t_day
	blood_culture	blood_culture
	Thrombocytopenia_severity	plt
	Leukopenia_severity	wbc
gi_tract_feeding_42d	ID	id
	Age_D	t_day
	Feeding	feeding
growth_hc_bw_6w	ID	id
	Age_W	t_wk
	Postnatal_BW_z_score_QW	bbw_z_qw
	Postnatal_HC_z_score_QW	bhc_z_qw
morbidities_42d	ID	id
	Age_D	t_day
	IVH	ivh
	PVL	pvl
	cerebellar_hemorrhage	cerebellar_hemorrhage
	ischaemic_stroke	ischaemic_stroke
	hs-PDArequiring_intervention	hs_pda_iv
	NEC	nec
	NonNEC_surgical_abdomen	non_nec_surg_abd
	AKI	aki
outcomes	ID	id
	Survival_at_discharge	survive
	age_of_death	death_age
	severe_ROP	rop_severe
	BPD_grade	bpd_grade
	EUGR_HC	eugr_hc
	EUGR_BW	eugr_bw
	discharge_hearing_outcome	hearing

Table 3. Raw data old and new variable types.

variable	old_type	new_type
id	numeric	character
t	numeric	numeric
socioeconomic_status	numeric	factor
education_status	numeric	factor
maternal_age	numeric	numeric
ivf	numeric	factor
pe	numeric	factor
gdm	numeric	factor
cs	numeric	factor
gravida	numeric	numeric
bbw_g	numeric	numeric
ga_wk	numeric	numeric
sex	numeric	factor
multiple_gestation	numeric	factor
as1	numeric	numeric
as5	numeric	numeric
resuscitation_at_birth	numeric	numeric
birthtime_scoring	numeric	factor
steroid_antenatal	numeric	numeric
chorioamnionitis	numeric	factor
surfactant	numeric	numeric
bbw_z	numeric	numeric
bhc_z	numeric	numeric
survive	numeric	factor
death_age	numeric	numeric
rop_severe	numeric	factor
bpd_grade	numeric	factor
eugr_hc	numeric	factor
eugr_bw	numeric	factor
hearing	numeric	factor
resp_supp_agg_cum_day_qw	numeric	numeric
fio2_cum_day_qw	numeric	numeric
fio2_cum_level_qw	numeric	numeric
resp_supp_agg_cum_day_pct	numeric	numeric
fio2_cum_day_pct	numeric	numeric
fio2_cum_level_pct	numeric	numeric
steroid_postnatal	numeric	numeric
bbw_z_qw	numeric	factor
bhc_z_qw	numeric	factor
resp_supp_raw	numeric	factor
fio2_raw	numeric	numeric
inotropic	numeric	numeric
blood_volume	numeric	numeric
transfusion	numeric	numeric
blood_culture	numeric	numeric
plt	numeric	numeric
wbc	numeric	numeric
feeding	numeric	numeric
ivh	numeric	factor
pvl	numeric	factor
cerebellar_hemorrhage	numeric	factor
ischaemic_stroke	numeric	factor
hs_pda_iv	numeric	factor
nec	numeric	numeric
non_nec_surg_abd	numeric	factor
aki	numeric	numeric

Table 4. Raw data old and new categories.

colname	old_cat	new_cat
socioeconomic_status	1	5-lowest
socioeconomic_status	2	4-second lowest
socioeconomic_status	3	3-medium
socioeconomic_status	4	2-second highest
socioeconomic_status	5	1-highest
education_status	1	7-elementary school
education_status	2	6-junior high school
education_status	3	5-high school, vocational
education_status	4	4-high school
education_status	5	3-college, vocational
education_status	6	2-college
education_status	7	1-postgraduate
ivf	0	0-no
ivf	1	1-yes
pe	0	0-no
pe	1	1-yes
gdm	0	0-no
gdm	1	1-yes
cs	0	0-no
cs	1	1-yes
sex	0	0-female
sex	1	1-male
multiple_gestation	0	0-no
multiple_gestation	1	1-yes
birthtime_scoring	1	1-born 08:00-16:59
birthtime_scoring	2	2-born 17:00-23:59
birthtime_scoring	3	3-born 00:00-07:59
chorioamnionitis	0	0-no
chorioamnionitis	1	1-yes
survive	0	0-no
survive	1	1-yes
rop_severe	0	0-none/stage I/stage II
rop_severe	1	1-stage II+
bpd_grade	0	0-no BPD
bpd_grade	1	1-mild BPD
bpd_grade	2	2-moderate/severe BPD
eugr_hc	0	0-HC z-score at birth >=-1.5
eugr_hc	1	1-HC z-score at birth <-1.5
eugr_bw	0	0-BW z-score at birth >=-1.5
eugr_bw	1	1-BW z-score at birth <-1.5
hearing	0	0-passed
hearing	1	1-failed
bbw_z_qw	0	4-BW z-score <=-3
bbw_z_qw	1	3-BW z-score >-3 & <=-2
bbw_z_qw	2	2-BW z-score >-2 & <=-1
bbw_z_qw	3	1-BW z-score >-1
bhc_z_qw	0	4-HC z-score <=-3
bhc_z_qw	1	3-HC z-score >-3 & <=-2
bhc_z_qw	2	2-HC z-score >-2 & <=-1
bhc_z_qw	3	1-HC z-score >-1
resp_supp_raw	1	1-room air
resp_supp_raw	2	2-nasal canula with oxygen
resp_supp_raw	3	3-CPAP
resp_supp_raw	4	4-N-IPPV
resp_supp_raw	5	5-IMV
resp_supp_raw	6	6-IMV+iNO/HFOV/HFOV+iNO
ivh	0	1-no IVH
ivh	1	2-IVH grade I
ivh	2	3-IVH grade II
ivh	4	4-IVH grade III
ivh	5	5-IVH grade IV, unilateral
ivh	6	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus
pvl	0	1-no PVL
pvl	2	2-PVL focal, unilateral
pvl	4	3-PVL focal, bilateral
pvl	6	4-PVL extensive, bilateral
cerebellar_hemorrhage	0	1-no bleeding
cerebellar_hemorrhage	1	2-minimal bleeding
cerebellar_hemorrhage	2	3-severe bleeding
ischaemic_stroke	0	1-no ischemia
ischaemic_stroke	1	2-ischemia, unilateral
ischaemic_stroke	2	3-ischemia, bilateral
ischaemic_stroke	3	4-ischemia, multiple
hs_pda_iv	0	1-no PDA/PDA, no intervention
hs_pda_iv	1	2-PDA, medical intervention
hs_pda_iv	2	3-PDA, surgical intervention
non_nec_surg_abd	0	1-no NEC/NEC, no surgery
non_nec_surg_abd	4	2-SIP/meconium ileus/volvulus/obstruction
non_nec_surg_abd	6	3-SIP/meconium ileus/volvulus/obstruction with stomy

Table 5. Consistency check - survival and age of death.

survive	ms_death_age	n
0-no	FALSE	119
1-yes	TRUE	719

Table 6. Consistency check - other outcomes and age of death.

ms_death_age	variable	missing	non-missing
missing	ms_bpd_grade	0	719
	ms_eugr_bw	0	719
	ms_eugr_hc	0	719
	ms_hearing	14	705
	ms_rop_severe	0	719
non-missing	ms_bpd_grade	109	10
	ms_eugr_bw	110	9
	ms_eugr_hc	110	9
	ms_hearing	119	0
	ms_rop_severe	109	10

Table 7. Consistency check - time-dependent variables and age of death.

t_death_age_def	t_alive	variable	missing	non-missing
ceiled	0-no	ms_resp_supp_agg_cum_day_qw	458	4
		ms_fio2_cum_day_qw	458	4
		ms_fio2_cum_level_qw	458	4
		ms_resp_supp_agg_cum_day_pct	458	4
		ms_fio2_cum_day_pct	458	4
		ms_fio2_cum_level_pct	458	4
		ms_steroid_postnatal	458	4
		ms_bbw_z_qw	460	2
		ms_bhc_z_qw	460	2
		ms_resp_supp_raw	3648	33
		ms_fio2_raw	3648	33
		ms_inotropic	3648	33
		ms_blood_volume	3648	33
		ms_transfusion	3648	33
		ms_blood_culture	3648	33
		ms_plt	3675	6
		ms_wbc	3675	6
		ms_feeding	3648	33
	1-yes	ms_resp_supp_agg_cum_day_qw	1	251
		ms_fio2_cum_day_qw	1	251
		ms_fio2_cum_level_qw	1	251
		ms_resp_supp_agg_cum_day_pct	1	251
		ms_fio2_cum_day_pct	1	251
		ms_fio2_cum_level_pct	1	251
		ms_steroid_postnatal	0	252
		ms_bbw_z_qw	5	247
		ms_bhc_z_qw	23	229
		ms_resp_supp_raw	5	1312
		ms_fio2_raw	5	1312
		ms_inotropic	0	1317
		ms_blood_volume	0	1317
		ms_transfusion	0	1317
		ms_blood_culture	0	1317
		ms_plt	986	331
		ms_wbc	995	322
		ms_feeding	0	1317
rounded_plus1	0-no	ms_resp_supp_agg_cum_day_qw	458	1
		ms_fio2_cum_day_qw	458	1
		ms_fio2_cum_level_qw	458	1
		ms_resp_supp_agg_cum_day_pct	458	1
		ms_fio2_cum_day_pct	458	1
		ms_fio2_cum_level_pct	458	1
		ms_steroid_postnatal	458	1
		ms_bbw_z_qw	459	0
		ms_bhc_z_qw	459	0
		ms_resp_supp_raw	3633	8
		ms_fio2_raw	3633	8
		ms_inotropic	3633	8
		ms_blood_volume	3633	8
		ms_transfusion	3633	8
		ms_blood_culture	3633	8
		ms_plt	3641	0
		ms_wbc	3641	0
		ms_feeding	3633	8
	1-yes	ms_resp_supp_agg_cum_day_qw	1	254
		ms_fio2_cum_day_qw	1	254
		ms_fio2_cum_level_qw	1	254
		ms_resp_supp_agg_cum_day_pct	1	254
		ms_fio2_cum_day_pct	1	254
		ms_fio2_cum_level_pct	1	254
		ms_steroid_postnatal	0	255
		ms_bbw_z_qw	6	249
		ms_bhc_z_qw	24	231
		ms_resp_supp_raw	20	1337
		ms_fio2_raw	20	1337
		ms_inotropic	15	1342
		ms_blood_volume	15	1342
		ms_transfusion	15	1342
		ms_blood_culture	15	1342
		ms_plt	1020	337
		ms_wbc	1029	328
		ms_feeding	15	1342
floored_plus1	0-no	ms_resp_supp_agg_cum_day_qw	458	4
		ms_fio2_cum_day_qw	458	4
		ms_fio2_cum_level_qw	458	4
		ms_resp_supp_agg_cum_day_pct	458	4
		ms_fio2_cum_day_pct	458	4
		ms_fio2_cum_level_pct	458	4
		ms_steroid_postnatal	458	4
		ms_bbw_z_qw	460	2
		ms_bhc_z_qw	460	2
		ms_resp_supp_raw	3648	33
		ms_fio2_raw	3648	33
		ms_inotropic	3648	33
		ms_blood_volume	3648	33
		ms_transfusion	3648	33
		ms_blood_culture	3648	33
		ms_plt	3675	6
		ms_wbc	3675	6
		ms_feeding	3648	33
	1-yes	ms_resp_supp_agg_cum_day_qw	1	251
		ms_fio2_cum_day_qw	1	251
		ms_fio2_cum_level_qw	1	251
		ms_resp_supp_agg_cum_day_pct	1	251
		ms_fio2_cum_day_pct	1	251
		ms_fio2_cum_level_pct	1	251
		ms_steroid_postnatal	0	252
		ms_bbw_z_qw	5	247
		ms_bhc_z_qw	23	229
		ms_resp_supp_raw	5	1312
		ms_fio2_raw	5	1312
		ms_inotropic	0	1317
		ms_blood_volume	0	1317
		ms_transfusion	0	1317
		ms_blood_culture	0	1317
		ms_plt	986	331
		ms_wbc	995	322
		ms_feeding	0	1317

Data partition

Figure 1. GA (week) distribution for each partition. GA, gestational week.

Numerical data transformation

Figure 2. QQ plot of numerical variables. QQ, quantile-to-quantile.

## t, maternal_age, gravida, bbw_g, ga_wk, as1, as5, resuscitation_at_birth, steroid_antenatal, surfactant, bbw_z, bhc_z, resp_supp_agg_cum_day_qw, fio2_cum_day_qw, fio2_cum_level_qw, resp_supp_agg_cum_day_pct, fio2_cum_day_pct, fio2_cum_level_pct, steroid_postnatal, inotropic, blood_volume, transfusion, blood_culture, plt, wbc, feeding, nec, aki

Table 8. Normality test.

variable	statistic	p.value	alternative
fio2_raw*	0.333	<0.001	two-sided
death_age*	0.261	<0.001	two-sided
Note:
*, p-value <=0.05, Shapiro-Wilk normality test.

## death_age, fio2_raw

## log, sqrt, inv, log2, exp, asinh, bct

Table 9. Normality test after transformation.

variable	best_trans	p.value	log	sqrt	inv	log2	exp	asinh	bct
fio2_raw*	log	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
death_age*	bct	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
Note:
*, p-value <=0.05, Shapiro-Wilk normality test.

## death_age, fio2_raw

Outlier analysis

Correlation matrix

## ms_fio2_cum_day_pct, ms_fio2_cum_day_qw, ms_fio2_cum_level_pct, ms_fio2_cum_level_qw, ms_resp_supp_agg_cum_day_pct, ms_resp_supp_agg_cum_day_qw, pvl

Table 10. Categorical variables with pair-wise perfect separation.

V1	V1_value	V2	V2_value	n
ms_death_age	yes	ms_rop_severe	yes	0
ms_death_age	yes	ms_bpd_grade	yes	0
ms_death_age	yes	ms_eugr_hc	yes	0
ms_death_age	yes	ms_eugr_bw	yes	0
ms_death_age	no	ms_hearing	no	0
ms_death_age	yes	ms_inotropic	yes	0
ms_death_age	yes	ms_blood_volume	yes	0
ms_death_age	yes	ms_transfusion	yes	0
ms_death_age	yes	ms_blood_culture	yes	0
ms_death_age	yes	ms_feeding	yes	0
ms_death_age	yes	ms_ivh	yes	0
ms_death_age	yes	ms_pvl	yes	0
ms_death_age	yes	ms_cerebellar_hemorrhage	yes	0
ms_death_age	yes	ms_ischaemic_stroke	yes	0
ms_death_age	yes	ms_hs_pda_iv	yes	0
ms_death_age	yes	ms_nec	yes	0
ms_death_age	yes	ms_non_nec_surg_abd	yes	0
ms_death_age	yes	ms_aki	yes	0
ms_death_age	yes	survive	0-no	0
ms_death_age	no	survive	1-yes	0
ms_death_age	yes	rop_severe	NA	0
ms_death_age	yes	bpd_grade	NA	0
ms_death_age	no	bpd_grade	1-mild BPD	0
ms_death_age	yes	eugr_hc	NA	0
ms_death_age	yes	eugr_bw	NA	0
ms_death_age	no	hearing	0-passed	0
ms_death_age	no	hearing	1-failed	0
ms_death_age	no	bbw_z_qw	4-BW z-score <=-3	0
ms_death_age	no	resp_supp_raw	1-room air	0
ms_death_age	yes	ivh	NA	0
ms_death_age	yes	cerebellar_hemorrhage	NA	0
ms_death_age	yes	ischaemic_stroke	NA	0
ms_death_age	no	ischaemic_stroke	4-ischemia, multiple	0
ms_death_age	yes	hs_pda_iv	NA	0
ms_death_age	yes	non_nec_surg_abd	NA	0
ms_death_age	no	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_rop_severe	yes	ms_bpd_grade	no	0
ms_rop_severe	no	ms_bpd_grade	yes	0
ms_rop_severe	yes	ms_eugr_hc	no	0
ms_rop_severe	yes	ms_eugr_bw	no	0
ms_rop_severe	yes	ms_hearing	no	0
ms_rop_severe	no	ms_inotropic	yes	0
ms_rop_severe	no	ms_blood_volume	yes	0
ms_rop_severe	no	ms_transfusion	yes	0
ms_rop_severe	no	ms_blood_culture	yes	0
ms_rop_severe	no	ms_feeding	yes	0
ms_rop_severe	no	ms_ivh	yes	0
ms_rop_severe	no	ms_pvl	yes	0
ms_rop_severe	no	ms_cerebellar_hemorrhage	yes	0
ms_rop_severe	no	ms_ischaemic_stroke	yes	0
ms_rop_severe	no	ms_hs_pda_iv	yes	0
ms_rop_severe	no	ms_nec	yes	0
ms_rop_severe	no	ms_non_nec_surg_abd	yes	0
ms_rop_severe	no	ms_aki	yes	0
ms_rop_severe	yes	survive	1-yes	0
ms_rop_severe	yes	rop_severe	0-none/stage I/stage II	0
ms_rop_severe	yes	rop_severe	1-stage II+	0
ms_rop_severe	no	rop_severe	NA	0
ms_rop_severe	yes	bpd_grade	0-no BPD	0
ms_rop_severe	yes	bpd_grade	1-mild BPD	0
ms_rop_severe	yes	bpd_grade	2-moderate/severe BPD	0
ms_rop_severe	no	bpd_grade	NA	0
ms_rop_severe	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_rop_severe	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_rop_severe	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_rop_severe	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_rop_severe	yes	hearing	0-passed	0
ms_rop_severe	yes	hearing	1-failed	0
ms_rop_severe	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_rop_severe	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_rop_severe	yes	resp_supp_raw	1-room air	0
ms_rop_severe	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_rop_severe	yes	ivh	2-IVH grade I	0
ms_rop_severe	no	ivh	NA	0
ms_rop_severe	no	cerebellar_hemorrhage	NA	0
ms_rop_severe	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_rop_severe	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_rop_severe	no	ischaemic_stroke	NA	0
ms_rop_severe	no	hs_pda_iv	NA	0
ms_rop_severe	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_rop_severe	no	non_nec_surg_abd	NA	0
ms_bpd_grade	yes	ms_eugr_hc	no	0
ms_bpd_grade	yes	ms_eugr_bw	no	0
ms_bpd_grade	yes	ms_hearing	no	0
ms_bpd_grade	no	ms_inotropic	yes	0
ms_bpd_grade	no	ms_blood_volume	yes	0
ms_bpd_grade	no	ms_transfusion	yes	0
ms_bpd_grade	no	ms_blood_culture	yes	0
ms_bpd_grade	no	ms_feeding	yes	0
ms_bpd_grade	no	ms_ivh	yes	0
ms_bpd_grade	no	ms_pvl	yes	0
ms_bpd_grade	no	ms_cerebellar_hemorrhage	yes	0
ms_bpd_grade	no	ms_ischaemic_stroke	yes	0
ms_bpd_grade	no	ms_hs_pda_iv	yes	0
ms_bpd_grade	no	ms_nec	yes	0
ms_bpd_grade	no	ms_non_nec_surg_abd	yes	0
ms_bpd_grade	no	ms_aki	yes	0
ms_bpd_grade	yes	survive	1-yes	0
ms_bpd_grade	yes	rop_severe	0-none/stage I/stage II	0
ms_bpd_grade	yes	rop_severe	1-stage II+	0
ms_bpd_grade	no	rop_severe	NA	0
ms_bpd_grade	yes	bpd_grade	0-no BPD	0
ms_bpd_grade	yes	bpd_grade	1-mild BPD	0
ms_bpd_grade	yes	bpd_grade	2-moderate/severe BPD	0
ms_bpd_grade	no	bpd_grade	NA	0
ms_bpd_grade	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_bpd_grade	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_bpd_grade	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_bpd_grade	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_bpd_grade	yes	hearing	0-passed	0
ms_bpd_grade	yes	hearing	1-failed	0
ms_bpd_grade	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_bpd_grade	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_bpd_grade	yes	resp_supp_raw	1-room air	0
ms_bpd_grade	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_bpd_grade	yes	ivh	2-IVH grade I	0
ms_bpd_grade	no	ivh	NA	0
ms_bpd_grade	no	cerebellar_hemorrhage	NA	0
ms_bpd_grade	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_bpd_grade	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_bpd_grade	no	ischaemic_stroke	NA	0
ms_bpd_grade	no	hs_pda_iv	NA	0
ms_bpd_grade	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_bpd_grade	no	non_nec_surg_abd	NA	0
ms_eugr_hc	yes	ms_eugr_bw	no	0
ms_eugr_hc	no	ms_eugr_bw	yes	0
ms_eugr_hc	yes	ms_hearing	no	0
ms_eugr_hc	no	ms_inotropic	yes	0
ms_eugr_hc	no	ms_blood_volume	yes	0
ms_eugr_hc	no	ms_transfusion	yes	0
ms_eugr_hc	no	ms_blood_culture	yes	0
ms_eugr_hc	no	ms_feeding	yes	0
ms_eugr_hc	no	ms_ivh	yes	0
ms_eugr_hc	no	ms_pvl	yes	0
ms_eugr_hc	no	ms_cerebellar_hemorrhage	yes	0
ms_eugr_hc	no	ms_ischaemic_stroke	yes	0
ms_eugr_hc	no	ms_hs_pda_iv	yes	0
ms_eugr_hc	no	ms_nec	yes	0
ms_eugr_hc	no	ms_non_nec_surg_abd	yes	0
ms_eugr_hc	no	ms_aki	yes	0
ms_eugr_hc	yes	survive	1-yes	0
ms_eugr_hc	yes	rop_severe	1-stage II+	0
ms_eugr_hc	no	rop_severe	NA	0
ms_eugr_hc	yes	bpd_grade	1-mild BPD	0
ms_eugr_hc	yes	bpd_grade	2-moderate/severe BPD	0
ms_eugr_hc	no	bpd_grade	NA	0
ms_eugr_hc	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_eugr_hc	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_eugr_hc	no	eugr_hc	NA	0
ms_eugr_hc	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_eugr_hc	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_eugr_hc	no	eugr_bw	NA	0
ms_eugr_hc	yes	hearing	0-passed	0
ms_eugr_hc	yes	hearing	1-failed	0
ms_eugr_hc	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_eugr_hc	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_eugr_hc	yes	resp_supp_raw	1-room air	0
ms_eugr_hc	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_eugr_hc	yes	ivh	2-IVH grade I	0
ms_eugr_hc	no	ivh	NA	0
ms_eugr_hc	no	cerebellar_hemorrhage	NA	0
ms_eugr_hc	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_eugr_hc	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_eugr_hc	no	ischaemic_stroke	NA	0
ms_eugr_hc	no	hs_pda_iv	NA	0
ms_eugr_hc	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_eugr_hc	no	non_nec_surg_abd	NA	0
ms_eugr_bw	yes	ms_hearing	no	0
ms_eugr_bw	no	ms_inotropic	yes	0
ms_eugr_bw	no	ms_blood_volume	yes	0
ms_eugr_bw	no	ms_transfusion	yes	0
ms_eugr_bw	no	ms_blood_culture	yes	0
ms_eugr_bw	no	ms_feeding	yes	0
ms_eugr_bw	no	ms_ivh	yes	0
ms_eugr_bw	no	ms_pvl	yes	0
ms_eugr_bw	no	ms_cerebellar_hemorrhage	yes	0
ms_eugr_bw	no	ms_ischaemic_stroke	yes	0
ms_eugr_bw	no	ms_hs_pda_iv	yes	0
ms_eugr_bw	no	ms_nec	yes	0
ms_eugr_bw	no	ms_non_nec_surg_abd	yes	0
ms_eugr_bw	no	ms_aki	yes	0
ms_eugr_bw	yes	survive	1-yes	0
ms_eugr_bw	yes	rop_severe	1-stage II+	0
ms_eugr_bw	no	rop_severe	NA	0
ms_eugr_bw	yes	bpd_grade	1-mild BPD	0
ms_eugr_bw	yes	bpd_grade	2-moderate/severe BPD	0
ms_eugr_bw	no	bpd_grade	NA	0
ms_eugr_bw	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_eugr_bw	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_eugr_bw	no	eugr_hc	NA	0
ms_eugr_bw	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_eugr_bw	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_eugr_bw	no	eugr_bw	NA	0
ms_eugr_bw	yes	hearing	0-passed	0
ms_eugr_bw	yes	hearing	1-failed	0
ms_eugr_bw	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_eugr_bw	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_eugr_bw	yes	resp_supp_raw	1-room air	0
ms_eugr_bw	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_eugr_bw	yes	ivh	2-IVH grade I	0
ms_eugr_bw	no	ivh	NA	0
ms_eugr_bw	no	cerebellar_hemorrhage	NA	0
ms_eugr_bw	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_eugr_bw	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_eugr_bw	no	ischaemic_stroke	NA	0
ms_eugr_bw	no	hs_pda_iv	NA	0
ms_eugr_bw	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_eugr_bw	no	non_nec_surg_abd	NA	0
ms_hearing	no	ms_inotropic	yes	0
ms_hearing	no	ms_blood_volume	yes	0
ms_hearing	no	ms_transfusion	yes	0
ms_hearing	no	ms_blood_culture	yes	0
ms_hearing	no	ms_feeding	yes	0
ms_hearing	no	ms_ivh	yes	0
ms_hearing	no	ms_pvl	yes	0
ms_hearing	no	ms_cerebellar_hemorrhage	yes	0
ms_hearing	no	ms_ischaemic_stroke	yes	0
ms_hearing	no	ms_hs_pda_iv	yes	0
ms_hearing	no	ms_nec	yes	0
ms_hearing	no	ms_non_nec_surg_abd	yes	0
ms_hearing	no	ms_aki	yes	0
ms_hearing	no	survive	0-no	0
ms_hearing	no	rop_severe	NA	0
ms_hearing	yes	bpd_grade	1-mild BPD	0
ms_hearing	no	bpd_grade	NA	0
ms_hearing	no	eugr_hc	NA	0
ms_hearing	no	eugr_bw	NA	0
ms_hearing	yes	hearing	0-passed	0
ms_hearing	yes	hearing	1-failed	0
ms_hearing	no	hearing	NA	0
ms_hearing	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_hearing	no	ivh	NA	0
ms_hearing	no	cerebellar_hemorrhage	NA	0
ms_hearing	no	ischaemic_stroke	NA	0
ms_hearing	no	hs_pda_iv	NA	0
ms_hearing	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_hearing	no	non_nec_surg_abd	NA	0
ms_bbw_z_qw	yes	socioeconomic_status	1-highest	0
ms_bbw_z_qw	yes	education_status	4-high school	0
ms_bbw_z_qw	yes	education_status	7-elementary school	0
ms_bbw_z_qw	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_bbw_z_qw	yes	bbw_z_qw	1-BW z-score >-1	0
ms_bbw_z_qw	yes	bbw_z_qw	2-BW z-score >-2 & <=-1	0
ms_bbw_z_qw	yes	bbw_z_qw	3-BW z-score >-3 & <=-2	0
ms_bbw_z_qw	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_bbw_z_qw	no	bbw_z_qw	NA	0
ms_bbw_z_qw	yes	bhc_z_qw	1-HC z-score >-1	0
ms_bbw_z_qw	yes	bhc_z_qw	2-HC z-score >-2 & <=-1	0
ms_bbw_z_qw	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_bbw_z_qw	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_bbw_z_qw	yes	ivh	2-IVH grade I	0
ms_bbw_z_qw	yes	ivh	3-IVH grade II	0
ms_bbw_z_qw	yes	ivh	4-IVH grade III	0
ms_bbw_z_qw	yes	ivh	5-IVH grade IV, unilateral	0
ms_bbw_z_qw	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_bbw_z_qw	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_bbw_z_qw	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_bbw_z_qw	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_bbw_z_qw	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_bbw_z_qw	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_bbw_z_qw	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_bhc_z_qw	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_bhc_z_qw	yes	bhc_z_qw	1-HC z-score >-1	0
ms_bhc_z_qw	yes	bhc_z_qw	2-HC z-score >-2 & <=-1	0
ms_bhc_z_qw	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_bhc_z_qw	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_bhc_z_qw	no	bhc_z_qw	NA	0
ms_bhc_z_qw	yes	ivh	2-IVH grade I	0
ms_bhc_z_qw	yes	ivh	3-IVH grade II	0
ms_bhc_z_qw	yes	ivh	4-IVH grade III	0
ms_bhc_z_qw	yes	ivh	5-IVH grade IV, unilateral	0
ms_bhc_z_qw	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_bhc_z_qw	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_bhc_z_qw	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_bhc_z_qw	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_bhc_z_qw	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_resp_supp_raw	yes	ms_fio2_raw	no	0
ms_resp_supp_raw	no	ms_fio2_raw	yes	0
ms_resp_supp_raw	no	ms_inotropic	yes	0
ms_resp_supp_raw	no	ms_blood_volume	yes	0
ms_resp_supp_raw	no	ms_transfusion	yes	0
ms_resp_supp_raw	no	ms_blood_culture	yes	0
ms_resp_supp_raw	no	ms_feeding	yes	0
ms_resp_supp_raw	no	ms_ivh	yes	0
ms_resp_supp_raw	no	ms_pvl	yes	0
ms_resp_supp_raw	no	ms_cerebellar_hemorrhage	yes	0
ms_resp_supp_raw	no	ms_ischaemic_stroke	yes	0
ms_resp_supp_raw	no	ms_hs_pda_iv	yes	0
ms_resp_supp_raw	no	ms_nec	yes	0
ms_resp_supp_raw	no	ms_non_nec_surg_abd	yes	0
ms_resp_supp_raw	no	ms_aki	yes	0
ms_resp_supp_raw	yes	socioeconomic_status	1-highest	0
ms_resp_supp_raw	yes	education_status	1-postgraduate	0
ms_resp_supp_raw	yes	education_status	4-high school	0
ms_resp_supp_raw	yes	education_status	7-elementary school	0
ms_resp_supp_raw	yes	bpd_grade	1-mild BPD	0
ms_resp_supp_raw	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_resp_supp_raw	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_resp_supp_raw	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_resp_supp_raw	yes	resp_supp_raw	1-room air	0
ms_resp_supp_raw	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_resp_supp_raw	yes	resp_supp_raw	3-CPAP	0
ms_resp_supp_raw	yes	resp_supp_raw	4-N-IPPV	0
ms_resp_supp_raw	yes	resp_supp_raw	5-IMV	0
ms_resp_supp_raw	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_resp_supp_raw	no	resp_supp_raw	NA	0
ms_resp_supp_raw	yes	ivh	2-IVH grade I	0
ms_resp_supp_raw	yes	ivh	3-IVH grade II	0
ms_resp_supp_raw	yes	ivh	4-IVH grade III	0
ms_resp_supp_raw	yes	ivh	5-IVH grade IV, unilateral	0
ms_resp_supp_raw	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_resp_supp_raw	no	ivh	NA	0
ms_resp_supp_raw	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_resp_supp_raw	no	cerebellar_hemorrhage	NA	0
ms_resp_supp_raw	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_resp_supp_raw	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_resp_supp_raw	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_resp_supp_raw	no	ischaemic_stroke	NA	0
ms_resp_supp_raw	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_resp_supp_raw	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_resp_supp_raw	no	hs_pda_iv	NA	0
ms_resp_supp_raw	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_resp_supp_raw	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_resp_supp_raw	no	non_nec_surg_abd	NA	0
ms_fio2_raw	no	ms_inotropic	yes	0
ms_fio2_raw	no	ms_blood_volume	yes	0
ms_fio2_raw	no	ms_transfusion	yes	0
ms_fio2_raw	no	ms_blood_culture	yes	0
ms_fio2_raw	no	ms_feeding	yes	0
ms_fio2_raw	no	ms_ivh	yes	0
ms_fio2_raw	no	ms_pvl	yes	0
ms_fio2_raw	no	ms_cerebellar_hemorrhage	yes	0
ms_fio2_raw	no	ms_ischaemic_stroke	yes	0
ms_fio2_raw	no	ms_hs_pda_iv	yes	0
ms_fio2_raw	no	ms_nec	yes	0
ms_fio2_raw	no	ms_non_nec_surg_abd	yes	0
ms_fio2_raw	no	ms_aki	yes	0
ms_fio2_raw	yes	socioeconomic_status	1-highest	0
ms_fio2_raw	yes	education_status	1-postgraduate	0
ms_fio2_raw	yes	education_status	4-high school	0
ms_fio2_raw	yes	education_status	7-elementary school	0
ms_fio2_raw	yes	bpd_grade	1-mild BPD	0
ms_fio2_raw	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_fio2_raw	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_fio2_raw	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_fio2_raw	yes	resp_supp_raw	1-room air	0
ms_fio2_raw	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_fio2_raw	yes	resp_supp_raw	3-CPAP	0
ms_fio2_raw	yes	resp_supp_raw	4-N-IPPV	0
ms_fio2_raw	yes	resp_supp_raw	5-IMV	0
ms_fio2_raw	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_fio2_raw	no	resp_supp_raw	NA	0
ms_fio2_raw	yes	ivh	2-IVH grade I	0
ms_fio2_raw	yes	ivh	3-IVH grade II	0
ms_fio2_raw	yes	ivh	4-IVH grade III	0
ms_fio2_raw	yes	ivh	5-IVH grade IV, unilateral	0
ms_fio2_raw	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_fio2_raw	no	ivh	NA	0
ms_fio2_raw	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_fio2_raw	no	cerebellar_hemorrhage	NA	0
ms_fio2_raw	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_fio2_raw	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_fio2_raw	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_fio2_raw	no	ischaemic_stroke	NA	0
ms_fio2_raw	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_fio2_raw	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_fio2_raw	no	hs_pda_iv	NA	0
ms_fio2_raw	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_fio2_raw	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_fio2_raw	no	non_nec_surg_abd	NA	0
ms_inotropic	yes	ms_blood_volume	no	0
ms_inotropic	no	ms_blood_volume	yes	0
ms_inotropic	yes	ms_transfusion	no	0
ms_inotropic	no	ms_transfusion	yes	0
ms_inotropic	yes	ms_blood_culture	no	0
ms_inotropic	no	ms_blood_culture	yes	0
ms_inotropic	yes	ms_plt	no	0
ms_inotropic	yes	ms_wbc	no	0
ms_inotropic	yes	ms_feeding	no	0
ms_inotropic	no	ms_feeding	yes	0
ms_inotropic	yes	ms_ivh	no	0
ms_inotropic	no	ms_ivh	yes	0
ms_inotropic	yes	ms_pvl	no	0
ms_inotropic	no	ms_pvl	yes	0
ms_inotropic	yes	ms_cerebellar_hemorrhage	no	0
ms_inotropic	no	ms_cerebellar_hemorrhage	yes	0
ms_inotropic	yes	ms_ischaemic_stroke	no	0
ms_inotropic	no	ms_ischaemic_stroke	yes	0
ms_inotropic	yes	ms_hs_pda_iv	no	0
ms_inotropic	no	ms_hs_pda_iv	yes	0
ms_inotropic	yes	ms_nec	no	0
ms_inotropic	no	ms_nec	yes	0
ms_inotropic	yes	ms_non_nec_surg_abd	no	0
ms_inotropic	no	ms_non_nec_surg_abd	yes	0
ms_inotropic	yes	ms_aki	no	0
ms_inotropic	no	ms_aki	yes	0
ms_inotropic	yes	socioeconomic_status	1-highest	0
ms_inotropic	yes	education_status	1-postgraduate	0
ms_inotropic	yes	education_status	4-high school	0
ms_inotropic	yes	education_status	6-junior high school	0
ms_inotropic	yes	education_status	7-elementary school	0
ms_inotropic	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_inotropic	yes	survive	1-yes	0
ms_inotropic	yes	rop_severe	0-none/stage I/stage II	0
ms_inotropic	yes	rop_severe	1-stage II+	0
ms_inotropic	yes	bpd_grade	0-no BPD	0
ms_inotropic	yes	bpd_grade	1-mild BPD	0
ms_inotropic	yes	bpd_grade	2-moderate/severe BPD	0
ms_inotropic	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_inotropic	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_inotropic	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_inotropic	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_inotropic	yes	hearing	0-passed	0
ms_inotropic	yes	hearing	1-failed	0
ms_inotropic	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_inotropic	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_inotropic	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_inotropic	yes	resp_supp_raw	1-room air	0
ms_inotropic	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_inotropic	yes	resp_supp_raw	3-CPAP	0
ms_inotropic	yes	resp_supp_raw	4-N-IPPV	0
ms_inotropic	yes	resp_supp_raw	5-IMV	0
ms_inotropic	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_inotropic	yes	ivh	1-no IVH	0
ms_inotropic	yes	ivh	2-IVH grade I	0
ms_inotropic	yes	ivh	3-IVH grade II	0
ms_inotropic	yes	ivh	4-IVH grade III	0
ms_inotropic	yes	ivh	5-IVH grade IV, unilateral	0
ms_inotropic	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_inotropic	no	ivh	NA	0
ms_inotropic	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_inotropic	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_inotropic	no	cerebellar_hemorrhage	NA	0
ms_inotropic	yes	ischaemic_stroke	1-no ischemia	0
ms_inotropic	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_inotropic	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_inotropic	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_inotropic	no	ischaemic_stroke	NA	0
ms_inotropic	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_inotropic	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_inotropic	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_inotropic	no	hs_pda_iv	NA	0
ms_inotropic	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_inotropic	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_inotropic	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_inotropic	no	non_nec_surg_abd	NA	0
ms_blood_volume	yes	ms_transfusion	no	0
ms_blood_volume	no	ms_transfusion	yes	0
ms_blood_volume	yes	ms_blood_culture	no	0
ms_blood_volume	no	ms_blood_culture	yes	0
ms_blood_volume	yes	ms_plt	no	0
ms_blood_volume	yes	ms_wbc	no	0
ms_blood_volume	yes	ms_feeding	no	0
ms_blood_volume	no	ms_feeding	yes	0
ms_blood_volume	yes	ms_ivh	no	0
ms_blood_volume	no	ms_ivh	yes	0
ms_blood_volume	yes	ms_pvl	no	0
ms_blood_volume	no	ms_pvl	yes	0
ms_blood_volume	yes	ms_cerebellar_hemorrhage	no	0
ms_blood_volume	no	ms_cerebellar_hemorrhage	yes	0
ms_blood_volume	yes	ms_ischaemic_stroke	no	0
ms_blood_volume	no	ms_ischaemic_stroke	yes	0
ms_blood_volume	yes	ms_hs_pda_iv	no	0
ms_blood_volume	no	ms_hs_pda_iv	yes	0
ms_blood_volume	yes	ms_nec	no	0
ms_blood_volume	no	ms_nec	yes	0
ms_blood_volume	yes	ms_non_nec_surg_abd	no	0
ms_blood_volume	no	ms_non_nec_surg_abd	yes	0
ms_blood_volume	yes	ms_aki	no	0
ms_blood_volume	no	ms_aki	yes	0
ms_blood_volume	yes	socioeconomic_status	1-highest	0
ms_blood_volume	yes	education_status	1-postgraduate	0
ms_blood_volume	yes	education_status	4-high school	0
ms_blood_volume	yes	education_status	6-junior high school	0
ms_blood_volume	yes	education_status	7-elementary school	0
ms_blood_volume	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_blood_volume	yes	survive	1-yes	0
ms_blood_volume	yes	rop_severe	0-none/stage I/stage II	0
ms_blood_volume	yes	rop_severe	1-stage II+	0
ms_blood_volume	yes	bpd_grade	0-no BPD	0
ms_blood_volume	yes	bpd_grade	1-mild BPD	0
ms_blood_volume	yes	bpd_grade	2-moderate/severe BPD	0
ms_blood_volume	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_blood_volume	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_blood_volume	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_blood_volume	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_blood_volume	yes	hearing	0-passed	0
ms_blood_volume	yes	hearing	1-failed	0
ms_blood_volume	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_blood_volume	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_blood_volume	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_blood_volume	yes	resp_supp_raw	1-room air	0
ms_blood_volume	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_blood_volume	yes	resp_supp_raw	3-CPAP	0
ms_blood_volume	yes	resp_supp_raw	4-N-IPPV	0
ms_blood_volume	yes	resp_supp_raw	5-IMV	0
ms_blood_volume	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_blood_volume	yes	ivh	1-no IVH	0
ms_blood_volume	yes	ivh	2-IVH grade I	0
ms_blood_volume	yes	ivh	3-IVH grade II	0
ms_blood_volume	yes	ivh	4-IVH grade III	0
ms_blood_volume	yes	ivh	5-IVH grade IV, unilateral	0
ms_blood_volume	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_blood_volume	no	ivh	NA	0
ms_blood_volume	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_blood_volume	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_blood_volume	no	cerebellar_hemorrhage	NA	0
ms_blood_volume	yes	ischaemic_stroke	1-no ischemia	0
ms_blood_volume	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_blood_volume	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_blood_volume	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_blood_volume	no	ischaemic_stroke	NA	0
ms_blood_volume	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_blood_volume	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_blood_volume	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_blood_volume	no	hs_pda_iv	NA	0
ms_blood_volume	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_blood_volume	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_blood_volume	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_blood_volume	no	non_nec_surg_abd	NA	0
ms_transfusion	yes	ms_blood_culture	no	0
ms_transfusion	no	ms_blood_culture	yes	0
ms_transfusion	yes	ms_plt	no	0
ms_transfusion	yes	ms_wbc	no	0
ms_transfusion	yes	ms_feeding	no	0
ms_transfusion	no	ms_feeding	yes	0
ms_transfusion	yes	ms_ivh	no	0
ms_transfusion	no	ms_ivh	yes	0
ms_transfusion	yes	ms_pvl	no	0
ms_transfusion	no	ms_pvl	yes	0
ms_transfusion	yes	ms_cerebellar_hemorrhage	no	0
ms_transfusion	no	ms_cerebellar_hemorrhage	yes	0
ms_transfusion	yes	ms_ischaemic_stroke	no	0
ms_transfusion	no	ms_ischaemic_stroke	yes	0
ms_transfusion	yes	ms_hs_pda_iv	no	0
ms_transfusion	no	ms_hs_pda_iv	yes	0
ms_transfusion	yes	ms_nec	no	0
ms_transfusion	no	ms_nec	yes	0
ms_transfusion	yes	ms_non_nec_surg_abd	no	0
ms_transfusion	no	ms_non_nec_surg_abd	yes	0
ms_transfusion	yes	ms_aki	no	0
ms_transfusion	no	ms_aki	yes	0
ms_transfusion	yes	socioeconomic_status	1-highest	0
ms_transfusion	yes	education_status	1-postgraduate	0
ms_transfusion	yes	education_status	4-high school	0
ms_transfusion	yes	education_status	6-junior high school	0
ms_transfusion	yes	education_status	7-elementary school	0
ms_transfusion	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_transfusion	yes	survive	1-yes	0
ms_transfusion	yes	rop_severe	0-none/stage I/stage II	0
ms_transfusion	yes	rop_severe	1-stage II+	0
ms_transfusion	yes	bpd_grade	0-no BPD	0
ms_transfusion	yes	bpd_grade	1-mild BPD	0
ms_transfusion	yes	bpd_grade	2-moderate/severe BPD	0
ms_transfusion	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_transfusion	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_transfusion	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_transfusion	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_transfusion	yes	hearing	0-passed	0
ms_transfusion	yes	hearing	1-failed	0
ms_transfusion	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_transfusion	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_transfusion	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_transfusion	yes	resp_supp_raw	1-room air	0
ms_transfusion	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_transfusion	yes	resp_supp_raw	3-CPAP	0
ms_transfusion	yes	resp_supp_raw	4-N-IPPV	0
ms_transfusion	yes	resp_supp_raw	5-IMV	0
ms_transfusion	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_transfusion	yes	ivh	1-no IVH	0
ms_transfusion	yes	ivh	2-IVH grade I	0
ms_transfusion	yes	ivh	3-IVH grade II	0
ms_transfusion	yes	ivh	4-IVH grade III	0
ms_transfusion	yes	ivh	5-IVH grade IV, unilateral	0
ms_transfusion	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_transfusion	no	ivh	NA	0
ms_transfusion	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_transfusion	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_transfusion	no	cerebellar_hemorrhage	NA	0
ms_transfusion	yes	ischaemic_stroke	1-no ischemia	0
ms_transfusion	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_transfusion	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_transfusion	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_transfusion	no	ischaemic_stroke	NA	0
ms_transfusion	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_transfusion	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_transfusion	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_transfusion	no	hs_pda_iv	NA	0
ms_transfusion	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_transfusion	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_transfusion	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_transfusion	no	non_nec_surg_abd	NA	0
ms_blood_culture	yes	ms_plt	no	0
ms_blood_culture	yes	ms_wbc	no	0
ms_blood_culture	yes	ms_feeding	no	0
ms_blood_culture	no	ms_feeding	yes	0
ms_blood_culture	yes	ms_ivh	no	0
ms_blood_culture	no	ms_ivh	yes	0
ms_blood_culture	yes	ms_pvl	no	0
ms_blood_culture	no	ms_pvl	yes	0
ms_blood_culture	yes	ms_cerebellar_hemorrhage	no	0
ms_blood_culture	no	ms_cerebellar_hemorrhage	yes	0
ms_blood_culture	yes	ms_ischaemic_stroke	no	0
ms_blood_culture	no	ms_ischaemic_stroke	yes	0
ms_blood_culture	yes	ms_hs_pda_iv	no	0
ms_blood_culture	no	ms_hs_pda_iv	yes	0
ms_blood_culture	yes	ms_nec	no	0
ms_blood_culture	no	ms_nec	yes	0
ms_blood_culture	yes	ms_non_nec_surg_abd	no	0
ms_blood_culture	no	ms_non_nec_surg_abd	yes	0
ms_blood_culture	yes	ms_aki	no	0
ms_blood_culture	no	ms_aki	yes	0
ms_blood_culture	yes	socioeconomic_status	1-highest	0
ms_blood_culture	yes	education_status	1-postgraduate	0
ms_blood_culture	yes	education_status	4-high school	0
ms_blood_culture	yes	education_status	6-junior high school	0
ms_blood_culture	yes	education_status	7-elementary school	0
ms_blood_culture	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_blood_culture	yes	survive	1-yes	0
ms_blood_culture	yes	rop_severe	0-none/stage I/stage II	0
ms_blood_culture	yes	rop_severe	1-stage II+	0
ms_blood_culture	yes	bpd_grade	0-no BPD	0
ms_blood_culture	yes	bpd_grade	1-mild BPD	0
ms_blood_culture	yes	bpd_grade	2-moderate/severe BPD	0
ms_blood_culture	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_blood_culture	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_blood_culture	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_blood_culture	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_blood_culture	yes	hearing	0-passed	0
ms_blood_culture	yes	hearing	1-failed	0
ms_blood_culture	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_blood_culture	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_blood_culture	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_blood_culture	yes	resp_supp_raw	1-room air	0
ms_blood_culture	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_blood_culture	yes	resp_supp_raw	3-CPAP	0
ms_blood_culture	yes	resp_supp_raw	4-N-IPPV	0
ms_blood_culture	yes	resp_supp_raw	5-IMV	0
ms_blood_culture	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_blood_culture	yes	ivh	1-no IVH	0
ms_blood_culture	yes	ivh	2-IVH grade I	0
ms_blood_culture	yes	ivh	3-IVH grade II	0
ms_blood_culture	yes	ivh	4-IVH grade III	0
ms_blood_culture	yes	ivh	5-IVH grade IV, unilateral	0
ms_blood_culture	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_blood_culture	no	ivh	NA	0
ms_blood_culture	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_blood_culture	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_blood_culture	no	cerebellar_hemorrhage	NA	0
ms_blood_culture	yes	ischaemic_stroke	1-no ischemia	0
ms_blood_culture	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_blood_culture	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_blood_culture	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_blood_culture	no	ischaemic_stroke	NA	0
ms_blood_culture	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_blood_culture	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_blood_culture	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_blood_culture	no	hs_pda_iv	NA	0
ms_blood_culture	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_blood_culture	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_blood_culture	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_blood_culture	no	non_nec_surg_abd	NA	0
ms_plt	yes	ms_wbc	no	0
ms_plt	no	ms_feeding	yes	0
ms_plt	no	ms_ivh	yes	0
ms_plt	no	ms_pvl	yes	0
ms_plt	no	ms_cerebellar_hemorrhage	yes	0
ms_plt	no	ms_ischaemic_stroke	yes	0
ms_plt	no	ms_hs_pda_iv	yes	0
ms_plt	no	ms_nec	yes	0
ms_plt	no	ms_non_nec_surg_abd	yes	0
ms_plt	no	ms_aki	yes	0
ms_plt	no	ivh	NA	0
ms_plt	no	cerebellar_hemorrhage	NA	0
ms_plt	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_plt	no	ischaemic_stroke	2-ischemia, unilateral	0
ms_plt	no	ischaemic_stroke	NA	0
ms_plt	no	hs_pda_iv	NA	0
ms_plt	no	non_nec_surg_abd	NA	0
ms_wbc	no	ms_feeding	yes	0
ms_wbc	no	ms_ivh	yes	0
ms_wbc	no	ms_pvl	yes	0
ms_wbc	no	ms_cerebellar_hemorrhage	yes	0
ms_wbc	no	ms_ischaemic_stroke	yes	0
ms_wbc	no	ms_hs_pda_iv	yes	0
ms_wbc	no	ms_nec	yes	0
ms_wbc	no	ms_non_nec_surg_abd	yes	0
ms_wbc	no	ms_aki	yes	0
ms_wbc	no	ivh	NA	0
ms_wbc	no	cerebellar_hemorrhage	NA	0
ms_wbc	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_wbc	no	ischaemic_stroke	2-ischemia, unilateral	0
ms_wbc	no	ischaemic_stroke	NA	0
ms_wbc	no	hs_pda_iv	NA	0
ms_wbc	no	non_nec_surg_abd	NA	0
ms_feeding	yes	ms_ivh	no	0
ms_feeding	no	ms_ivh	yes	0
ms_feeding	yes	ms_pvl	no	0
ms_feeding	no	ms_pvl	yes	0
ms_feeding	yes	ms_cerebellar_hemorrhage	no	0
ms_feeding	no	ms_cerebellar_hemorrhage	yes	0
ms_feeding	yes	ms_ischaemic_stroke	no	0
ms_feeding	no	ms_ischaemic_stroke	yes	0
ms_feeding	yes	ms_hs_pda_iv	no	0
ms_feeding	no	ms_hs_pda_iv	yes	0
ms_feeding	yes	ms_nec	no	0
ms_feeding	no	ms_nec	yes	0
ms_feeding	yes	ms_non_nec_surg_abd	no	0
ms_feeding	no	ms_non_nec_surg_abd	yes	0
ms_feeding	yes	ms_aki	no	0
ms_feeding	no	ms_aki	yes	0
ms_feeding	yes	socioeconomic_status	1-highest	0
ms_feeding	yes	education_status	1-postgraduate	0
ms_feeding	yes	education_status	4-high school	0
ms_feeding	yes	education_status	6-junior high school	0
ms_feeding	yes	education_status	7-elementary school	0
ms_feeding	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_feeding	yes	survive	1-yes	0
ms_feeding	yes	rop_severe	0-none/stage I/stage II	0
ms_feeding	yes	rop_severe	1-stage II+	0
ms_feeding	yes	bpd_grade	0-no BPD	0
ms_feeding	yes	bpd_grade	1-mild BPD	0
ms_feeding	yes	bpd_grade	2-moderate/severe BPD	0
ms_feeding	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_feeding	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_feeding	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_feeding	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_feeding	yes	hearing	0-passed	0
ms_feeding	yes	hearing	1-failed	0
ms_feeding	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_feeding	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_feeding	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_feeding	yes	resp_supp_raw	1-room air	0
ms_feeding	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_feeding	yes	resp_supp_raw	3-CPAP	0
ms_feeding	yes	resp_supp_raw	4-N-IPPV	0
ms_feeding	yes	resp_supp_raw	5-IMV	0
ms_feeding	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_feeding	yes	ivh	1-no IVH	0
ms_feeding	yes	ivh	2-IVH grade I	0
ms_feeding	yes	ivh	3-IVH grade II	0
ms_feeding	yes	ivh	4-IVH grade III	0
ms_feeding	yes	ivh	5-IVH grade IV, unilateral	0
ms_feeding	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_feeding	no	ivh	NA	0
ms_feeding	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_feeding	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_feeding	no	cerebellar_hemorrhage	NA	0
ms_feeding	yes	ischaemic_stroke	1-no ischemia	0
ms_feeding	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_feeding	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_feeding	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_feeding	no	ischaemic_stroke	NA	0
ms_feeding	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_feeding	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_feeding	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_feeding	no	hs_pda_iv	NA	0
ms_feeding	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_feeding	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_feeding	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_feeding	no	non_nec_surg_abd	NA	0
ms_ivh	yes	ms_pvl	no	0
ms_ivh	no	ms_pvl	yes	0
ms_ivh	yes	ms_cerebellar_hemorrhage	no	0
ms_ivh	no	ms_cerebellar_hemorrhage	yes	0
ms_ivh	yes	ms_ischaemic_stroke	no	0
ms_ivh	no	ms_ischaemic_stroke	yes	0
ms_ivh	yes	ms_hs_pda_iv	no	0
ms_ivh	no	ms_hs_pda_iv	yes	0
ms_ivh	yes	ms_nec	no	0
ms_ivh	no	ms_nec	yes	0
ms_ivh	yes	ms_non_nec_surg_abd	no	0
ms_ivh	no	ms_non_nec_surg_abd	yes	0
ms_ivh	yes	ms_aki	no	0
ms_ivh	no	ms_aki	yes	0
ms_ivh	yes	socioeconomic_status	1-highest	0
ms_ivh	yes	education_status	1-postgraduate	0
ms_ivh	yes	education_status	4-high school	0
ms_ivh	yes	education_status	6-junior high school	0
ms_ivh	yes	education_status	7-elementary school	0
ms_ivh	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_ivh	yes	survive	1-yes	0
ms_ivh	yes	rop_severe	0-none/stage I/stage II	0
ms_ivh	yes	rop_severe	1-stage II+	0
ms_ivh	yes	bpd_grade	0-no BPD	0
ms_ivh	yes	bpd_grade	1-mild BPD	0
ms_ivh	yes	bpd_grade	2-moderate/severe BPD	0
ms_ivh	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_ivh	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_ivh	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_ivh	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_ivh	yes	hearing	0-passed	0
ms_ivh	yes	hearing	1-failed	0
ms_ivh	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_ivh	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_ivh	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_ivh	yes	resp_supp_raw	1-room air	0
ms_ivh	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_ivh	yes	resp_supp_raw	3-CPAP	0
ms_ivh	yes	resp_supp_raw	4-N-IPPV	0
ms_ivh	yes	resp_supp_raw	5-IMV	0
ms_ivh	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_ivh	yes	ivh	1-no IVH	0
ms_ivh	yes	ivh	2-IVH grade I	0
ms_ivh	yes	ivh	3-IVH grade II	0
ms_ivh	yes	ivh	4-IVH grade III	0
ms_ivh	yes	ivh	5-IVH grade IV, unilateral	0
ms_ivh	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_ivh	no	ivh	NA	0
ms_ivh	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_ivh	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_ivh	no	cerebellar_hemorrhage	NA	0
ms_ivh	yes	ischaemic_stroke	1-no ischemia	0
ms_ivh	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_ivh	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_ivh	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_ivh	no	ischaemic_stroke	NA	0
ms_ivh	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_ivh	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_ivh	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_ivh	no	hs_pda_iv	NA	0
ms_ivh	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_ivh	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_ivh	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_ivh	no	non_nec_surg_abd	NA	0
ms_pvl	yes	ms_cerebellar_hemorrhage	no	0
ms_pvl	no	ms_cerebellar_hemorrhage	yes	0
ms_pvl	yes	ms_ischaemic_stroke	no	0
ms_pvl	no	ms_ischaemic_stroke	yes	0
ms_pvl	yes	ms_hs_pda_iv	no	0
ms_pvl	no	ms_hs_pda_iv	yes	0
ms_pvl	yes	ms_nec	no	0
ms_pvl	no	ms_nec	yes	0
ms_pvl	yes	ms_non_nec_surg_abd	no	0
ms_pvl	no	ms_non_nec_surg_abd	yes	0
ms_pvl	yes	ms_aki	no	0
ms_pvl	no	ms_aki	yes	0
ms_pvl	yes	socioeconomic_status	1-highest	0
ms_pvl	yes	education_status	1-postgraduate	0
ms_pvl	yes	education_status	4-high school	0
ms_pvl	yes	education_status	6-junior high school	0
ms_pvl	yes	education_status	7-elementary school	0
ms_pvl	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_pvl	yes	survive	1-yes	0
ms_pvl	yes	rop_severe	0-none/stage I/stage II	0
ms_pvl	yes	rop_severe	1-stage II+	0
ms_pvl	yes	bpd_grade	0-no BPD	0
ms_pvl	yes	bpd_grade	1-mild BPD	0
ms_pvl	yes	bpd_grade	2-moderate/severe BPD	0
ms_pvl	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_pvl	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_pvl	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_pvl	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_pvl	yes	hearing	0-passed	0
ms_pvl	yes	hearing	1-failed	0
ms_pvl	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_pvl	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_pvl	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_pvl	yes	resp_supp_raw	1-room air	0
ms_pvl	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_pvl	yes	resp_supp_raw	3-CPAP	0
ms_pvl	yes	resp_supp_raw	4-N-IPPV	0
ms_pvl	yes	resp_supp_raw	5-IMV	0
ms_pvl	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_pvl	yes	ivh	1-no IVH	0
ms_pvl	yes	ivh	2-IVH grade I	0
ms_pvl	yes	ivh	3-IVH grade II	0
ms_pvl	yes	ivh	4-IVH grade III	0
ms_pvl	yes	ivh	5-IVH grade IV, unilateral	0
ms_pvl	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_pvl	no	ivh	NA	0
ms_pvl	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_pvl	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_pvl	no	cerebellar_hemorrhage	NA	0
ms_pvl	yes	ischaemic_stroke	1-no ischemia	0
ms_pvl	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_pvl	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_pvl	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_pvl	no	ischaemic_stroke	NA	0
ms_pvl	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_pvl	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_pvl	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_pvl	no	hs_pda_iv	NA	0
ms_pvl	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_pvl	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_pvl	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_pvl	no	non_nec_surg_abd	NA	0
ms_cerebellar_hemorrhage	yes	ms_ischaemic_stroke	no	0
ms_cerebellar_hemorrhage	no	ms_ischaemic_stroke	yes	0
ms_cerebellar_hemorrhage	yes	ms_hs_pda_iv	no	0
ms_cerebellar_hemorrhage	no	ms_hs_pda_iv	yes	0
ms_cerebellar_hemorrhage	yes	ms_nec	no	0
ms_cerebellar_hemorrhage	no	ms_nec	yes	0
ms_cerebellar_hemorrhage	yes	ms_non_nec_surg_abd	no	0
ms_cerebellar_hemorrhage	no	ms_non_nec_surg_abd	yes	0
ms_cerebellar_hemorrhage	yes	ms_aki	no	0
ms_cerebellar_hemorrhage	no	ms_aki	yes	0
ms_cerebellar_hemorrhage	yes	socioeconomic_status	1-highest	0
ms_cerebellar_hemorrhage	yes	education_status	1-postgraduate	0
ms_cerebellar_hemorrhage	yes	education_status	4-high school	0
ms_cerebellar_hemorrhage	yes	education_status	6-junior high school	0
ms_cerebellar_hemorrhage	yes	education_status	7-elementary school	0
ms_cerebellar_hemorrhage	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_cerebellar_hemorrhage	yes	survive	1-yes	0
ms_cerebellar_hemorrhage	yes	rop_severe	0-none/stage I/stage II	0
ms_cerebellar_hemorrhage	yes	rop_severe	1-stage II+	0
ms_cerebellar_hemorrhage	yes	bpd_grade	0-no BPD	0
ms_cerebellar_hemorrhage	yes	bpd_grade	1-mild BPD	0
ms_cerebellar_hemorrhage	yes	bpd_grade	2-moderate/severe BPD	0
ms_cerebellar_hemorrhage	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_cerebellar_hemorrhage	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_cerebellar_hemorrhage	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_cerebellar_hemorrhage	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_cerebellar_hemorrhage	yes	hearing	0-passed	0
ms_cerebellar_hemorrhage	yes	hearing	1-failed	0
ms_cerebellar_hemorrhage	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_cerebellar_hemorrhage	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_cerebellar_hemorrhage	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_cerebellar_hemorrhage	yes	resp_supp_raw	1-room air	0
ms_cerebellar_hemorrhage	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_cerebellar_hemorrhage	yes	resp_supp_raw	3-CPAP	0
ms_cerebellar_hemorrhage	yes	resp_supp_raw	4-N-IPPV	0
ms_cerebellar_hemorrhage	yes	resp_supp_raw	5-IMV	0
ms_cerebellar_hemorrhage	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_cerebellar_hemorrhage	yes	ivh	1-no IVH	0
ms_cerebellar_hemorrhage	yes	ivh	2-IVH grade I	0
ms_cerebellar_hemorrhage	yes	ivh	3-IVH grade II	0
ms_cerebellar_hemorrhage	yes	ivh	4-IVH grade III	0
ms_cerebellar_hemorrhage	yes	ivh	5-IVH grade IV, unilateral	0
ms_cerebellar_hemorrhage	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_cerebellar_hemorrhage	no	ivh	NA	0
ms_cerebellar_hemorrhage	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_cerebellar_hemorrhage	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_cerebellar_hemorrhage	no	cerebellar_hemorrhage	NA	0
ms_cerebellar_hemorrhage	yes	ischaemic_stroke	1-no ischemia	0
ms_cerebellar_hemorrhage	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_cerebellar_hemorrhage	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_cerebellar_hemorrhage	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_cerebellar_hemorrhage	no	ischaemic_stroke	NA	0
ms_cerebellar_hemorrhage	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_cerebellar_hemorrhage	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_cerebellar_hemorrhage	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_cerebellar_hemorrhage	no	hs_pda_iv	NA	0
ms_cerebellar_hemorrhage	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_cerebellar_hemorrhage	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_cerebellar_hemorrhage	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_cerebellar_hemorrhage	no	non_nec_surg_abd	NA	0
ms_ischaemic_stroke	yes	ms_hs_pda_iv	no	0
ms_ischaemic_stroke	no	ms_hs_pda_iv	yes	0
ms_ischaemic_stroke	yes	ms_nec	no	0
ms_ischaemic_stroke	no	ms_nec	yes	0
ms_ischaemic_stroke	yes	ms_non_nec_surg_abd	no	0
ms_ischaemic_stroke	no	ms_non_nec_surg_abd	yes	0
ms_ischaemic_stroke	yes	ms_aki	no	0
ms_ischaemic_stroke	no	ms_aki	yes	0
ms_ischaemic_stroke	yes	socioeconomic_status	1-highest	0
ms_ischaemic_stroke	yes	education_status	1-postgraduate	0
ms_ischaemic_stroke	yes	education_status	4-high school	0
ms_ischaemic_stroke	yes	education_status	6-junior high school	0
ms_ischaemic_stroke	yes	education_status	7-elementary school	0
ms_ischaemic_stroke	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_ischaemic_stroke	yes	survive	1-yes	0
ms_ischaemic_stroke	yes	rop_severe	0-none/stage I/stage II	0
ms_ischaemic_stroke	yes	rop_severe	1-stage II+	0
ms_ischaemic_stroke	yes	bpd_grade	0-no BPD	0
ms_ischaemic_stroke	yes	bpd_grade	1-mild BPD	0
ms_ischaemic_stroke	yes	bpd_grade	2-moderate/severe BPD	0
ms_ischaemic_stroke	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_ischaemic_stroke	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_ischaemic_stroke	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_ischaemic_stroke	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_ischaemic_stroke	yes	hearing	0-passed	0
ms_ischaemic_stroke	yes	hearing	1-failed	0
ms_ischaemic_stroke	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_ischaemic_stroke	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_ischaemic_stroke	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_ischaemic_stroke	yes	resp_supp_raw	1-room air	0
ms_ischaemic_stroke	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_ischaemic_stroke	yes	resp_supp_raw	3-CPAP	0
ms_ischaemic_stroke	yes	resp_supp_raw	4-N-IPPV	0
ms_ischaemic_stroke	yes	resp_supp_raw	5-IMV	0
ms_ischaemic_stroke	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_ischaemic_stroke	yes	ivh	1-no IVH	0
ms_ischaemic_stroke	yes	ivh	2-IVH grade I	0
ms_ischaemic_stroke	yes	ivh	3-IVH grade II	0
ms_ischaemic_stroke	yes	ivh	4-IVH grade III	0
ms_ischaemic_stroke	yes	ivh	5-IVH grade IV, unilateral	0
ms_ischaemic_stroke	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_ischaemic_stroke	no	ivh	NA	0
ms_ischaemic_stroke	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_ischaemic_stroke	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_ischaemic_stroke	no	cerebellar_hemorrhage	NA	0
ms_ischaemic_stroke	yes	ischaemic_stroke	1-no ischemia	0
ms_ischaemic_stroke	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_ischaemic_stroke	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_ischaemic_stroke	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_ischaemic_stroke	no	ischaemic_stroke	NA	0
ms_ischaemic_stroke	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_ischaemic_stroke	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_ischaemic_stroke	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_ischaemic_stroke	no	hs_pda_iv	NA	0
ms_ischaemic_stroke	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_ischaemic_stroke	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_ischaemic_stroke	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_ischaemic_stroke	no	non_nec_surg_abd	NA	0
ms_hs_pda_iv	yes	ms_nec	no	0
ms_hs_pda_iv	no	ms_nec	yes	0
ms_hs_pda_iv	yes	ms_non_nec_surg_abd	no	0
ms_hs_pda_iv	no	ms_non_nec_surg_abd	yes	0
ms_hs_pda_iv	yes	ms_aki	no	0
ms_hs_pda_iv	no	ms_aki	yes	0
ms_hs_pda_iv	yes	socioeconomic_status	1-highest	0
ms_hs_pda_iv	yes	education_status	1-postgraduate	0
ms_hs_pda_iv	yes	education_status	4-high school	0
ms_hs_pda_iv	yes	education_status	6-junior high school	0
ms_hs_pda_iv	yes	education_status	7-elementary school	0
ms_hs_pda_iv	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_hs_pda_iv	yes	survive	1-yes	0
ms_hs_pda_iv	yes	rop_severe	0-none/stage I/stage II	0
ms_hs_pda_iv	yes	rop_severe	1-stage II+	0
ms_hs_pda_iv	yes	bpd_grade	0-no BPD	0
ms_hs_pda_iv	yes	bpd_grade	1-mild BPD	0
ms_hs_pda_iv	yes	bpd_grade	2-moderate/severe BPD	0
ms_hs_pda_iv	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_hs_pda_iv	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_hs_pda_iv	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_hs_pda_iv	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_hs_pda_iv	yes	hearing	0-passed	0
ms_hs_pda_iv	yes	hearing	1-failed	0
ms_hs_pda_iv	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_hs_pda_iv	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_hs_pda_iv	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_hs_pda_iv	yes	resp_supp_raw	1-room air	0
ms_hs_pda_iv	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_hs_pda_iv	yes	resp_supp_raw	3-CPAP	0
ms_hs_pda_iv	yes	resp_supp_raw	4-N-IPPV	0
ms_hs_pda_iv	yes	resp_supp_raw	5-IMV	0
ms_hs_pda_iv	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_hs_pda_iv	yes	ivh	1-no IVH	0
ms_hs_pda_iv	yes	ivh	2-IVH grade I	0
ms_hs_pda_iv	yes	ivh	3-IVH grade II	0
ms_hs_pda_iv	yes	ivh	4-IVH grade III	0
ms_hs_pda_iv	yes	ivh	5-IVH grade IV, unilateral	0
ms_hs_pda_iv	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_hs_pda_iv	no	ivh	NA	0
ms_hs_pda_iv	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_hs_pda_iv	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_hs_pda_iv	no	cerebellar_hemorrhage	NA	0
ms_hs_pda_iv	yes	ischaemic_stroke	1-no ischemia	0
ms_hs_pda_iv	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_hs_pda_iv	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_hs_pda_iv	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_hs_pda_iv	no	ischaemic_stroke	NA	0
ms_hs_pda_iv	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_hs_pda_iv	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_hs_pda_iv	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_hs_pda_iv	no	hs_pda_iv	NA	0
ms_hs_pda_iv	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_hs_pda_iv	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_hs_pda_iv	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_hs_pda_iv	no	non_nec_surg_abd	NA	0
ms_nec	yes	ms_non_nec_surg_abd	no	0
ms_nec	no	ms_non_nec_surg_abd	yes	0
ms_nec	yes	ms_aki	no	0
ms_nec	no	ms_aki	yes	0
ms_nec	yes	socioeconomic_status	1-highest	0
ms_nec	yes	education_status	1-postgraduate	0
ms_nec	yes	education_status	4-high school	0
ms_nec	yes	education_status	6-junior high school	0
ms_nec	yes	education_status	7-elementary school	0
ms_nec	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_nec	yes	survive	1-yes	0
ms_nec	yes	rop_severe	0-none/stage I/stage II	0
ms_nec	yes	rop_severe	1-stage II+	0
ms_nec	yes	bpd_grade	0-no BPD	0
ms_nec	yes	bpd_grade	1-mild BPD	0
ms_nec	yes	bpd_grade	2-moderate/severe BPD	0
ms_nec	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_nec	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_nec	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_nec	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_nec	yes	hearing	0-passed	0
ms_nec	yes	hearing	1-failed	0
ms_nec	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_nec	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_nec	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_nec	yes	resp_supp_raw	1-room air	0
ms_nec	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_nec	yes	resp_supp_raw	3-CPAP	0
ms_nec	yes	resp_supp_raw	4-N-IPPV	0
ms_nec	yes	resp_supp_raw	5-IMV	0
ms_nec	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_nec	yes	ivh	1-no IVH	0
ms_nec	yes	ivh	2-IVH grade I	0
ms_nec	yes	ivh	3-IVH grade II	0
ms_nec	yes	ivh	4-IVH grade III	0
ms_nec	yes	ivh	5-IVH grade IV, unilateral	0
ms_nec	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_nec	no	ivh	NA	0
ms_nec	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_nec	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_nec	no	cerebellar_hemorrhage	NA	0
ms_nec	yes	ischaemic_stroke	1-no ischemia	0
ms_nec	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_nec	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_nec	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_nec	no	ischaemic_stroke	NA	0
ms_nec	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_nec	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_nec	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_nec	no	hs_pda_iv	NA	0
ms_nec	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_nec	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_nec	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_nec	no	non_nec_surg_abd	NA	0
ms_non_nec_surg_abd	yes	ms_aki	no	0
ms_non_nec_surg_abd	no	ms_aki	yes	0
ms_non_nec_surg_abd	yes	socioeconomic_status	1-highest	0
ms_non_nec_surg_abd	yes	education_status	1-postgraduate	0
ms_non_nec_surg_abd	yes	education_status	4-high school	0
ms_non_nec_surg_abd	yes	education_status	6-junior high school	0
ms_non_nec_surg_abd	yes	education_status	7-elementary school	0
ms_non_nec_surg_abd	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_non_nec_surg_abd	yes	survive	1-yes	0
ms_non_nec_surg_abd	yes	rop_severe	0-none/stage I/stage II	0
ms_non_nec_surg_abd	yes	rop_severe	1-stage II+	0
ms_non_nec_surg_abd	yes	bpd_grade	0-no BPD	0
ms_non_nec_surg_abd	yes	bpd_grade	1-mild BPD	0
ms_non_nec_surg_abd	yes	bpd_grade	2-moderate/severe BPD	0
ms_non_nec_surg_abd	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_non_nec_surg_abd	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_non_nec_surg_abd	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_non_nec_surg_abd	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_non_nec_surg_abd	yes	hearing	0-passed	0
ms_non_nec_surg_abd	yes	hearing	1-failed	0
ms_non_nec_surg_abd	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_non_nec_surg_abd	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_non_nec_surg_abd	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_non_nec_surg_abd	yes	resp_supp_raw	1-room air	0
ms_non_nec_surg_abd	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_non_nec_surg_abd	yes	resp_supp_raw	3-CPAP	0
ms_non_nec_surg_abd	yes	resp_supp_raw	4-N-IPPV	0
ms_non_nec_surg_abd	yes	resp_supp_raw	5-IMV	0
ms_non_nec_surg_abd	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_non_nec_surg_abd	yes	ivh	1-no IVH	0
ms_non_nec_surg_abd	yes	ivh	2-IVH grade I	0
ms_non_nec_surg_abd	yes	ivh	3-IVH grade II	0
ms_non_nec_surg_abd	yes	ivh	4-IVH grade III	0
ms_non_nec_surg_abd	yes	ivh	5-IVH grade IV, unilateral	0
ms_non_nec_surg_abd	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_non_nec_surg_abd	no	ivh	NA	0
ms_non_nec_surg_abd	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_non_nec_surg_abd	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_non_nec_surg_abd	no	cerebellar_hemorrhage	NA	0
ms_non_nec_surg_abd	yes	ischaemic_stroke	1-no ischemia	0
ms_non_nec_surg_abd	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_non_nec_surg_abd	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_non_nec_surg_abd	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_non_nec_surg_abd	no	ischaemic_stroke	NA	0
ms_non_nec_surg_abd	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_non_nec_surg_abd	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_non_nec_surg_abd	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_non_nec_surg_abd	no	hs_pda_iv	NA	0
ms_non_nec_surg_abd	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_non_nec_surg_abd	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_non_nec_surg_abd	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_non_nec_surg_abd	no	non_nec_surg_abd	NA	0
ms_aki	yes	socioeconomic_status	1-highest	0
ms_aki	yes	education_status	1-postgraduate	0
ms_aki	yes	education_status	4-high school	0
ms_aki	yes	education_status	6-junior high school	0
ms_aki	yes	education_status	7-elementary school	0
ms_aki	yes	birthtime_scoring	2-born 17:00-23:59	0
ms_aki	yes	survive	1-yes	0
ms_aki	yes	rop_severe	0-none/stage I/stage II	0
ms_aki	yes	rop_severe	1-stage II+	0
ms_aki	yes	bpd_grade	0-no BPD	0
ms_aki	yes	bpd_grade	1-mild BPD	0
ms_aki	yes	bpd_grade	2-moderate/severe BPD	0
ms_aki	yes	eugr_hc	0-HC z-score at birth >=-1.5	0
ms_aki	yes	eugr_hc	1-HC z-score at birth <-1.5	0
ms_aki	yes	eugr_bw	0-BW z-score at birth >=-1.5	0
ms_aki	yes	eugr_bw	1-BW z-score at birth <-1.5	0
ms_aki	yes	hearing	0-passed	0
ms_aki	yes	hearing	1-failed	0
ms_aki	yes	bbw_z_qw	4-BW z-score <=-3	0
ms_aki	yes	bhc_z_qw	3-HC z-score >-3 & <=-2	0
ms_aki	yes	bhc_z_qw	4-HC z-score <=-3	0
ms_aki	yes	resp_supp_raw	1-room air	0
ms_aki	yes	resp_supp_raw	2-nasal canula with oxygen	0
ms_aki	yes	resp_supp_raw	3-CPAP	0
ms_aki	yes	resp_supp_raw	4-N-IPPV	0
ms_aki	yes	resp_supp_raw	5-IMV	0
ms_aki	yes	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
ms_aki	yes	ivh	1-no IVH	0
ms_aki	yes	ivh	2-IVH grade I	0
ms_aki	yes	ivh	3-IVH grade II	0
ms_aki	yes	ivh	4-IVH grade III	0
ms_aki	yes	ivh	5-IVH grade IV, unilateral	0
ms_aki	yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
ms_aki	no	ivh	NA	0
ms_aki	yes	cerebellar_hemorrhage	1-no bleeding	0
ms_aki	yes	cerebellar_hemorrhage	3-severe bleeding	0
ms_aki	no	cerebellar_hemorrhage	NA	0
ms_aki	yes	ischaemic_stroke	1-no ischemia	0
ms_aki	yes	ischaemic_stroke	2-ischemia, unilateral	0
ms_aki	yes	ischaemic_stroke	3-ischemia, bilateral	0
ms_aki	yes	ischaemic_stroke	4-ischemia, multiple	0
ms_aki	no	ischaemic_stroke	NA	0
ms_aki	yes	hs_pda_iv	1-no PDA/PDA, no intervention	0
ms_aki	yes	hs_pda_iv	2-PDA, medical intervention	0
ms_aki	yes	hs_pda_iv	3-PDA, surgical intervention	0
ms_aki	no	hs_pda_iv	NA	0
ms_aki	yes	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ms_aki	yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ms_aki	yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ms_aki	no	non_nec_surg_abd	NA	0
socioeconomic_status	4-second lowest	education_status	1-postgraduate	0
socioeconomic_status	5-lowest	education_status	1-postgraduate	0
socioeconomic_status	5-lowest	education_status	2-college	0
socioeconomic_status	1-highest	education_status	3-college, vocational	0
socioeconomic_status	5-lowest	education_status	3-college, vocational	0
socioeconomic_status	1-highest	education_status	4-high school	0
socioeconomic_status	1-highest	education_status	5-high school, vocational	0
socioeconomic_status	1-highest	education_status	6-junior high school	0
socioeconomic_status	1-highest	education_status	7-elementary school	0
socioeconomic_status	2-second highest	education_status	7-elementary school	0
socioeconomic_status	5-lowest	ivf	1-yes	0
socioeconomic_status	1-highest	pe	1-yes	0
socioeconomic_status	1-highest	gdm	1-yes	0
socioeconomic_status	5-lowest	gdm	1-yes	0
socioeconomic_status	1-highest	chorioamnionitis	1-yes	0
socioeconomic_status	5-lowest	chorioamnionitis	1-yes	0
socioeconomic_status	1-highest	bpd_grade	1-mild BPD	0
socioeconomic_status	5-lowest	bpd_grade	1-mild BPD	0
socioeconomic_status	1-highest	bbw_z_qw	3-BW z-score >-3 & <=-2	0
socioeconomic_status	1-highest	bbw_z_qw	NA	0
socioeconomic_status	1-highest	bbw_z_qw	4-BW z-score <=-3	0
socioeconomic_status	2-second highest	bbw_z_qw	4-BW z-score <=-3	0
socioeconomic_status	5-lowest	bbw_z_qw	4-BW z-score <=-3	0
socioeconomic_status	1-highest	bhc_z_qw	3-HC z-score >-3 & <=-2	0
socioeconomic_status	1-highest	bhc_z_qw	4-HC z-score <=-3	0
socioeconomic_status	1-highest	resp_supp_raw	2-nasal canula with oxygen	0
socioeconomic_status	1-highest	resp_supp_raw	NA	0
socioeconomic_status	4-second lowest	ivh	4-IVH grade III	0
socioeconomic_status	5-lowest	ivh	4-IVH grade III	0
socioeconomic_status	1-highest	ivh	5-IVH grade IV, unilateral	0
socioeconomic_status	1-highest	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
socioeconomic_status	5-lowest	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
socioeconomic_status	1-highest	ivh	NA	0
socioeconomic_status	1-highest	cerebellar_hemorrhage	3-severe bleeding	0
socioeconomic_status	4-second lowest	cerebellar_hemorrhage	3-severe bleeding	0
socioeconomic_status	5-lowest	cerebellar_hemorrhage	3-severe bleeding	0
socioeconomic_status	1-highest	cerebellar_hemorrhage	NA	0
socioeconomic_status	1-highest	ischaemic_stroke	2-ischemia, unilateral	0
socioeconomic_status	3-medium	ischaemic_stroke	2-ischemia, unilateral	0
socioeconomic_status	5-lowest	ischaemic_stroke	2-ischemia, unilateral	0
socioeconomic_status	1-highest	ischaemic_stroke	3-ischemia, bilateral	0
socioeconomic_status	5-lowest	ischaemic_stroke	3-ischemia, bilateral	0
socioeconomic_status	1-highest	ischaemic_stroke	NA	0
socioeconomic_status	1-highest	ischaemic_stroke	4-ischemia, multiple	0
socioeconomic_status	2-second highest	ischaemic_stroke	4-ischemia, multiple	0
socioeconomic_status	3-medium	ischaemic_stroke	4-ischemia, multiple	0
socioeconomic_status	1-highest	hs_pda_iv	NA	0
socioeconomic_status	1-highest	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
socioeconomic_status	1-highest	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
socioeconomic_status	4-second lowest	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
socioeconomic_status	5-lowest	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
socioeconomic_status	1-highest	non_nec_surg_abd	NA	0
education_status	7-elementary school	ivf	1-yes	0
education_status	7-elementary school	pe	1-yes	0
education_status	6-junior high school	gdm	1-yes	0
education_status	7-elementary school	gdm	1-yes	0
education_status	7-elementary school	birthtime_scoring	3-born 00:00-07:59	0
education_status	7-elementary school	chorioamnionitis	1-yes	0
education_status	7-elementary school	rop_severe	1-stage II+	0
education_status	7-elementary school	bpd_grade	1-mild BPD	0
education_status	7-elementary school	eugr_hc	1-HC z-score at birth <-1.5	0
education_status	7-elementary school	hearing	1-failed	0
education_status	7-elementary school	bbw_z_qw	3-BW z-score >-3 & <=-2	0
education_status	4-high school	bbw_z_qw	NA	0
education_status	7-elementary school	bbw_z_qw	NA	0
education_status	1-postgraduate	bbw_z_qw	4-BW z-score <=-3	0
education_status	4-high school	bbw_z_qw	4-BW z-score <=-3	0
education_status	6-junior high school	bbw_z_qw	4-BW z-score <=-3	0
education_status	7-elementary school	bbw_z_qw	4-BW z-score <=-3	0
education_status	7-elementary school	bhc_z_qw	4-HC z-score <=-3	0
education_status	7-elementary school	resp_supp_raw	2-nasal canula with oxygen	0
education_status	1-postgraduate	resp_supp_raw	NA	0
education_status	4-high school	resp_supp_raw	NA	0
education_status	7-elementary school	resp_supp_raw	NA	0
education_status	7-elementary school	ivh	2-IVH grade I	0
education_status	4-high school	ivh	4-IVH grade III	0
education_status	5-high school, vocational	ivh	4-IVH grade III	0
education_status	6-junior high school	ivh	4-IVH grade III	0
education_status	7-elementary school	ivh	4-IVH grade III	0
education_status	5-high school, vocational	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
education_status	6-junior high school	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
education_status	7-elementary school	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
education_status	1-postgraduate	ivh	5-IVH grade IV, unilateral	0
education_status	3-college, vocational	ivh	5-IVH grade IV, unilateral	0
education_status	1-postgraduate	ivh	NA	0
education_status	4-high school	ivh	NA	0
education_status	6-junior high school	ivh	NA	0
education_status	7-elementary school	ivh	NA	0
education_status	3-college, vocational	cerebellar_hemorrhage	3-severe bleeding	0
education_status	4-high school	cerebellar_hemorrhage	3-severe bleeding	0
education_status	6-junior high school	cerebellar_hemorrhage	3-severe bleeding	0
education_status	7-elementary school	cerebellar_hemorrhage	3-severe bleeding	0
education_status	1-postgraduate	cerebellar_hemorrhage	NA	0
education_status	4-high school	cerebellar_hemorrhage	NA	0
education_status	6-junior high school	cerebellar_hemorrhage	NA	0
education_status	7-elementary school	cerebellar_hemorrhage	NA	0
education_status	1-postgraduate	ischaemic_stroke	2-ischemia, unilateral	0
education_status	3-college, vocational	ischaemic_stroke	2-ischemia, unilateral	0
education_status	4-high school	ischaemic_stroke	2-ischemia, unilateral	0
education_status	6-junior high school	ischaemic_stroke	2-ischemia, unilateral	0
education_status	7-elementary school	ischaemic_stroke	2-ischemia, unilateral	0
education_status	1-postgraduate	ischaemic_stroke	3-ischemia, bilateral	0
education_status	3-college, vocational	ischaemic_stroke	3-ischemia, bilateral	0
education_status	4-high school	ischaemic_stroke	3-ischemia, bilateral	0
education_status	6-junior high school	ischaemic_stroke	3-ischemia, bilateral	0
education_status	7-elementary school	ischaemic_stroke	3-ischemia, bilateral	0
education_status	1-postgraduate	ischaemic_stroke	NA	0
education_status	4-high school	ischaemic_stroke	NA	0
education_status	6-junior high school	ischaemic_stroke	NA	0
education_status	7-elementary school	ischaemic_stroke	NA	0
education_status	1-postgraduate	ischaemic_stroke	4-ischemia, multiple	0
education_status	2-college	ischaemic_stroke	4-ischemia, multiple	0
education_status	3-college, vocational	ischaemic_stroke	4-ischemia, multiple	0
education_status	6-junior high school	ischaemic_stroke	4-ischemia, multiple	0
education_status	7-elementary school	ischaemic_stroke	4-ischemia, multiple	0
education_status	7-elementary school	hs_pda_iv	3-PDA, surgical intervention	0
education_status	1-postgraduate	hs_pda_iv	NA	0
education_status	4-high school	hs_pda_iv	NA	0
education_status	6-junior high school	hs_pda_iv	NA	0
education_status	7-elementary school	hs_pda_iv	NA	0
education_status	1-postgraduate	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
education_status	4-high school	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
education_status	6-junior high school	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
education_status	7-elementary school	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
education_status	1-postgraduate	non_nec_surg_abd	NA	0
education_status	4-high school	non_nec_surg_abd	NA	0
education_status	6-junior high school	non_nec_surg_abd	NA	0
education_status	7-elementary school	non_nec_surg_abd	NA	0
ivf	1-yes	ischaemic_stroke	2-ischemia, unilateral	0
ivf	1-yes	ischaemic_stroke	4-ischemia, multiple	0
pe	1-yes	ischaemic_stroke	4-ischemia, multiple	0
gdm	1-yes	bpd_grade	1-mild BPD	0
gdm	1-yes	bbw_z_qw	3-BW z-score >-3 & <=-2	0
gdm	1-yes	bbw_z_qw	4-BW z-score <=-3	0
gdm	1-yes	resp_supp_raw	2-nasal canula with oxygen	0
gdm	1-yes	ivh	4-IVH grade III	0
gdm	1-yes	ischaemic_stroke	2-ischemia, unilateral	0
gdm	1-yes	ischaemic_stroke	3-ischemia, bilateral	0
gdm	1-yes	ischaemic_stroke	4-ischemia, multiple	0
gdm	1-yes	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
gdm	1-yes	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
cs	0-no	bbw_z_qw	4-BW z-score <=-3	0
cs	0-no	ischaemic_stroke	3-ischemia, bilateral	0
cs	0-no	ischaemic_stroke	4-ischemia, multiple	0
sex	0-female	cerebellar_hemorrhage	3-severe bleeding	0
sex	0-female	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
multiple_gestation	1-yes	ischaemic_stroke	2-ischemia, unilateral	0
multiple_gestation	0-no	ischaemic_stroke	3-ischemia, bilateral	0
birthtime_scoring	2-born 17:00-23:59	ivh	NA	0
birthtime_scoring	2-born 17:00-23:59	cerebellar_hemorrhage	NA	0
birthtime_scoring	3-born 00:00-07:59	ischaemic_stroke	2-ischemia, unilateral	0
birthtime_scoring	3-born 00:00-07:59	ischaemic_stroke	3-ischemia, bilateral	0
birthtime_scoring	2-born 17:00-23:59	ischaemic_stroke	NA	0
birthtime_scoring	1-born 08:00-16:59	ischaemic_stroke	4-ischemia, multiple	0
birthtime_scoring	3-born 00:00-07:59	ischaemic_stroke	4-ischemia, multiple	0
birthtime_scoring	2-born 17:00-23:59	hs_pda_iv	NA	0
birthtime_scoring	2-born 17:00-23:59	non_nec_surg_abd	NA	0
chorioamnionitis	1-yes	bbw_z_qw	4-BW z-score <=-3	0
chorioamnionitis	1-yes	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
chorioamnionitis	1-yes	ischaemic_stroke	2-ischemia, unilateral	0
chorioamnionitis	1-yes	ischaemic_stroke	3-ischemia, bilateral	0
chorioamnionitis	1-yes	ischaemic_stroke	4-ischemia, multiple	0
survive	1-yes	rop_severe	NA	0
survive	1-yes	bpd_grade	NA	0
survive	0-no	bpd_grade	1-mild BPD	0
survive	1-yes	eugr_hc	NA	0
survive	1-yes	eugr_bw	NA	0
survive	0-no	hearing	0-passed	0
survive	0-no	hearing	1-failed	0
survive	0-no	bbw_z_qw	4-BW z-score <=-3	0
survive	0-no	resp_supp_raw	1-room air	0
survive	1-yes	ivh	NA	0
survive	1-yes	cerebellar_hemorrhage	NA	0
survive	1-yes	ischaemic_stroke	NA	0
survive	0-no	ischaemic_stroke	4-ischemia, multiple	0
survive	1-yes	hs_pda_iv	NA	0
survive	1-yes	non_nec_surg_abd	NA	0
survive	0-no	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
rop_severe	NA	bpd_grade	0-no BPD	0
rop_severe	NA	bpd_grade	1-mild BPD	0
rop_severe	NA	bpd_grade	2-moderate/severe BPD	0
rop_severe	0-none/stage I/stage II	bpd_grade	NA	0
rop_severe	1-stage II+	bpd_grade	NA	0
rop_severe	NA	eugr_hc	0-HC z-score at birth >=-1.5	0
rop_severe	NA	eugr_hc	1-HC z-score at birth <-1.5	0
rop_severe	1-stage II+	eugr_hc	NA	0
rop_severe	NA	eugr_bw	0-BW z-score at birth >=-1.5	0
rop_severe	NA	eugr_bw	1-BW z-score at birth <-1.5	0
rop_severe	1-stage II+	eugr_bw	NA	0
rop_severe	NA	hearing	0-passed	0
rop_severe	NA	hearing	1-failed	0
rop_severe	1-stage II+	bbw_z_qw	4-BW z-score <=-3	0
rop_severe	NA	bbw_z_qw	4-BW z-score <=-3	0
rop_severe	NA	bhc_z_qw	4-HC z-score <=-3	0
rop_severe	NA	resp_supp_raw	1-room air	0
rop_severe	1-stage II+	resp_supp_raw	2-nasal canula with oxygen	0
rop_severe	NA	resp_supp_raw	2-nasal canula with oxygen	0
rop_severe	NA	ivh	2-IVH grade I	0
rop_severe	0-none/stage I/stage II	ivh	NA	0
rop_severe	1-stage II+	ivh	NA	0
rop_severe	1-stage II+	cerebellar_hemorrhage	3-severe bleeding	0
rop_severe	0-none/stage I/stage II	cerebellar_hemorrhage	NA	0
rop_severe	1-stage II+	cerebellar_hemorrhage	NA	0
rop_severe	1-stage II+	ischaemic_stroke	2-ischemia, unilateral	0
rop_severe	NA	ischaemic_stroke	2-ischemia, unilateral	0
rop_severe	1-stage II+	ischaemic_stroke	3-ischemia, bilateral	0
rop_severe	NA	ischaemic_stroke	4-ischemia, multiple	0
rop_severe	0-none/stage I/stage II	ischaemic_stroke	NA	0
rop_severe	1-stage II+	ischaemic_stroke	NA	0
rop_severe	0-none/stage I/stage II	hs_pda_iv	NA	0
rop_severe	1-stage II+	hs_pda_iv	NA	0
rop_severe	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
rop_severe	0-none/stage I/stage II	non_nec_surg_abd	NA	0
rop_severe	1-stage II+	non_nec_surg_abd	NA	0
bpd_grade	NA	eugr_hc	0-HC z-score at birth >=-1.5	0
bpd_grade	NA	eugr_hc	1-HC z-score at birth <-1.5	0
bpd_grade	1-mild BPD	eugr_hc	NA	0
bpd_grade	2-moderate/severe BPD	eugr_hc	NA	0
bpd_grade	NA	eugr_bw	0-BW z-score at birth >=-1.5	0
bpd_grade	NA	eugr_bw	1-BW z-score at birth <-1.5	0
bpd_grade	1-mild BPD	eugr_bw	NA	0
bpd_grade	2-moderate/severe BPD	eugr_bw	NA	0
bpd_grade	NA	hearing	0-passed	0
bpd_grade	NA	hearing	1-failed	0
bpd_grade	1-mild BPD	hearing	NA	0
bpd_grade	1-mild BPD	bbw_z_qw	4-BW z-score <=-3	0
bpd_grade	NA	bbw_z_qw	4-BW z-score <=-3	0
bpd_grade	NA	bhc_z_qw	4-HC z-score <=-3	0
bpd_grade	2-moderate/severe BPD	resp_supp_raw	1-room air	0
bpd_grade	NA	resp_supp_raw	1-room air	0
bpd_grade	NA	resp_supp_raw	2-nasal canula with oxygen	0
bpd_grade	1-mild BPD	resp_supp_raw	NA	0
bpd_grade	1-mild BPD	ivh	2-IVH grade I	0
bpd_grade	NA	ivh	2-IVH grade I	0
bpd_grade	1-mild BPD	ivh	5-IVH grade IV, unilateral	0
bpd_grade	1-mild BPD	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
bpd_grade	0-no BPD	ivh	NA	0
bpd_grade	1-mild BPD	ivh	NA	0
bpd_grade	2-moderate/severe BPD	ivh	NA	0
bpd_grade	0-no BPD	cerebellar_hemorrhage	3-severe bleeding	0
bpd_grade	1-mild BPD	cerebellar_hemorrhage	3-severe bleeding	0
bpd_grade	0-no BPD	cerebellar_hemorrhage	NA	0
bpd_grade	1-mild BPD	cerebellar_hemorrhage	NA	0
bpd_grade	2-moderate/severe BPD	cerebellar_hemorrhage	NA	0
bpd_grade	1-mild BPD	ischaemic_stroke	2-ischemia, unilateral	0
bpd_grade	NA	ischaemic_stroke	2-ischemia, unilateral	0
bpd_grade	1-mild BPD	ischaemic_stroke	3-ischemia, bilateral	0
bpd_grade	0-no BPD	ischaemic_stroke	4-ischemia, multiple	0
bpd_grade	1-mild BPD	ischaemic_stroke	4-ischemia, multiple	0
bpd_grade	NA	ischaemic_stroke	4-ischemia, multiple	0
bpd_grade	0-no BPD	ischaemic_stroke	NA	0
bpd_grade	1-mild BPD	ischaemic_stroke	NA	0
bpd_grade	2-moderate/severe BPD	ischaemic_stroke	NA	0
bpd_grade	0-no BPD	hs_pda_iv	NA	0
bpd_grade	1-mild BPD	hs_pda_iv	NA	0
bpd_grade	2-moderate/severe BPD	hs_pda_iv	NA	0
bpd_grade	1-mild BPD	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
bpd_grade	1-mild BPD	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
bpd_grade	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
bpd_grade	0-no BPD	non_nec_surg_abd	NA	0
bpd_grade	1-mild BPD	non_nec_surg_abd	NA	0
bpd_grade	2-moderate/severe BPD	non_nec_surg_abd	NA	0
eugr_hc	NA	eugr_bw	0-BW z-score at birth >=-1.5	0
eugr_hc	NA	eugr_bw	1-BW z-score at birth <-1.5	0
eugr_hc	0-HC z-score at birth >=-1.5	eugr_bw	NA	0
eugr_hc	1-HC z-score at birth <-1.5	eugr_bw	NA	0
eugr_hc	NA	hearing	0-passed	0
eugr_hc	NA	hearing	1-failed	0
eugr_hc	NA	bbw_z_qw	4-BW z-score <=-3	0
eugr_hc	NA	bhc_z_qw	4-HC z-score <=-3	0
eugr_hc	NA	resp_supp_raw	1-room air	0
eugr_hc	NA	resp_supp_raw	2-nasal canula with oxygen	0
eugr_hc	NA	ivh	2-IVH grade I	0
eugr_hc	0-HC z-score at birth >=-1.5	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
eugr_hc	0-HC z-score at birth >=-1.5	ivh	NA	0
eugr_hc	1-HC z-score at birth <-1.5	ivh	NA	0
eugr_hc	0-HC z-score at birth >=-1.5	cerebellar_hemorrhage	3-severe bleeding	0
eugr_hc	0-HC z-score at birth >=-1.5	cerebellar_hemorrhage	NA	0
eugr_hc	1-HC z-score at birth <-1.5	cerebellar_hemorrhage	NA	0
eugr_hc	NA	ischaemic_stroke	2-ischemia, unilateral	0
eugr_hc	0-HC z-score at birth >=-1.5	ischaemic_stroke	3-ischemia, bilateral	0
eugr_hc	0-HC z-score at birth >=-1.5	ischaemic_stroke	4-ischemia, multiple	0
eugr_hc	NA	ischaemic_stroke	4-ischemia, multiple	0
eugr_hc	0-HC z-score at birth >=-1.5	ischaemic_stroke	NA	0
eugr_hc	1-HC z-score at birth <-1.5	ischaemic_stroke	NA	0
eugr_hc	0-HC z-score at birth >=-1.5	hs_pda_iv	NA	0
eugr_hc	1-HC z-score at birth <-1.5	hs_pda_iv	NA	0
eugr_hc	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
eugr_hc	0-HC z-score at birth >=-1.5	non_nec_surg_abd	NA	0
eugr_hc	1-HC z-score at birth <-1.5	non_nec_surg_abd	NA	0
eugr_bw	NA	hearing	0-passed	0
eugr_bw	NA	hearing	1-failed	0
eugr_bw	NA	bbw_z_qw	4-BW z-score <=-3	0
eugr_bw	1-BW z-score at birth <-1.5	bbw_z_qw	NA	0
eugr_bw	NA	bhc_z_qw	4-HC z-score <=-3	0
eugr_bw	NA	resp_supp_raw	1-room air	0
eugr_bw	NA	resp_supp_raw	2-nasal canula with oxygen	0
eugr_bw	NA	ivh	2-IVH grade I	0
eugr_bw	0-BW z-score at birth >=-1.5	ivh	NA	0
eugr_bw	1-BW z-score at birth <-1.5	ivh	NA	0
eugr_bw	0-BW z-score at birth >=-1.5	cerebellar_hemorrhage	3-severe bleeding	0
eugr_bw	0-BW z-score at birth >=-1.5	cerebellar_hemorrhage	NA	0
eugr_bw	1-BW z-score at birth <-1.5	cerebellar_hemorrhage	NA	0
eugr_bw	NA	ischaemic_stroke	2-ischemia, unilateral	0
eugr_bw	1-BW z-score at birth <-1.5	ischaemic_stroke	3-ischemia, bilateral	0
eugr_bw	1-BW z-score at birth <-1.5	ischaemic_stroke	4-ischemia, multiple	0
eugr_bw	NA	ischaemic_stroke	4-ischemia, multiple	0
eugr_bw	0-BW z-score at birth >=-1.5	ischaemic_stroke	NA	0
eugr_bw	1-BW z-score at birth <-1.5	ischaemic_stroke	NA	0
eugr_bw	0-BW z-score at birth >=-1.5	hs_pda_iv	NA	0
eugr_bw	1-BW z-score at birth <-1.5	hs_pda_iv	NA	0
eugr_bw	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
eugr_bw	0-BW z-score at birth >=-1.5	non_nec_surg_abd	NA	0
eugr_bw	1-BW z-score at birth <-1.5	non_nec_surg_abd	NA	0
hearing	NA	bbw_z_qw	4-BW z-score <=-3	0
hearing	1-failed	resp_supp_raw	2-nasal canula with oxygen	0
hearing	0-passed	ivh	NA	0
hearing	1-failed	ivh	NA	0
hearing	1-failed	cerebellar_hemorrhage	3-severe bleeding	0
hearing	0-passed	cerebellar_hemorrhage	NA	0
hearing	1-failed	cerebellar_hemorrhage	NA	0
hearing	1-failed	ischaemic_stroke	3-ischemia, bilateral	0
hearing	1-failed	ischaemic_stroke	4-ischemia, multiple	0
hearing	0-passed	ischaemic_stroke	NA	0
hearing	1-failed	ischaemic_stroke	NA	0
hearing	0-passed	hs_pda_iv	NA	0
hearing	1-failed	hs_pda_iv	NA	0
hearing	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
hearing	0-passed	non_nec_surg_abd	NA	0
hearing	1-failed	non_nec_surg_abd	NA	0
bbw_z_qw	4-BW z-score <=-3	bhc_z_qw	1-HC z-score >-1	0
bbw_z_qw	NA	bhc_z_qw	1-HC z-score >-1	0
bbw_z_qw	4-BW z-score <=-3	bhc_z_qw	2-HC z-score >-2 & <=-1	0
bbw_z_qw	NA	bhc_z_qw	2-HC z-score >-2 & <=-1	0
bbw_z_qw	4-BW z-score <=-3	bhc_z_qw	3-HC z-score >-3 & <=-2	0
bbw_z_qw	NA	bhc_z_qw	3-HC z-score >-3 & <=-2	0
bbw_z_qw	4-BW z-score <=-3	bhc_z_qw	NA	0
bbw_z_qw	4-BW z-score <=-3	resp_supp_raw	2-nasal canula with oxygen	0
bbw_z_qw	4-BW z-score <=-3	resp_supp_raw	4-N-IPPV	0
bbw_z_qw	4-BW z-score <=-3	resp_supp_raw	5-IMV	0
bbw_z_qw	4-BW z-score <=-3	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
bbw_z_qw	NA	resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	0
bbw_z_qw	4-BW z-score <=-3	resp_supp_raw	NA	0
bbw_z_qw	4-BW z-score <=-3	ivh	2-IVH grade I	0
bbw_z_qw	NA	ivh	2-IVH grade I	0
bbw_z_qw	4-BW z-score <=-3	ivh	3-IVH grade II	0
bbw_z_qw	NA	ivh	3-IVH grade II	0
bbw_z_qw	4-BW z-score <=-3	ivh	4-IVH grade III	0
bbw_z_qw	NA	ivh	4-IVH grade III	0
bbw_z_qw	4-BW z-score <=-3	ivh	5-IVH grade IV, unilateral	0
bbw_z_qw	NA	ivh	5-IVH grade IV, unilateral	0
bbw_z_qw	4-BW z-score <=-3	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
bbw_z_qw	NA	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
bbw_z_qw	4-BW z-score <=-3	ivh	NA	0
bbw_z_qw	3-BW z-score >-3 & <=-2	cerebellar_hemorrhage	3-severe bleeding	0
bbw_z_qw	4-BW z-score <=-3	cerebellar_hemorrhage	3-severe bleeding	0
bbw_z_qw	NA	cerebellar_hemorrhage	3-severe bleeding	0
bbw_z_qw	4-BW z-score <=-3	cerebellar_hemorrhage	NA	0
bbw_z_qw	4-BW z-score <=-3	ischaemic_stroke	2-ischemia, unilateral	0
bbw_z_qw	NA	ischaemic_stroke	2-ischemia, unilateral	0
bbw_z_qw	2-BW z-score >-2 & <=-1	ischaemic_stroke	3-ischemia, bilateral	0
bbw_z_qw	3-BW z-score >-3 & <=-2	ischaemic_stroke	3-ischemia, bilateral	0
bbw_z_qw	4-BW z-score <=-3	ischaemic_stroke	3-ischemia, bilateral	0
bbw_z_qw	2-BW z-score >-2 & <=-1	ischaemic_stroke	4-ischemia, multiple	0
bbw_z_qw	3-BW z-score >-3 & <=-2	ischaemic_stroke	4-ischemia, multiple	0
bbw_z_qw	4-BW z-score <=-3	ischaemic_stroke	4-ischemia, multiple	0
bbw_z_qw	NA	ischaemic_stroke	4-ischemia, multiple	0
bbw_z_qw	4-BW z-score <=-3	ischaemic_stroke	NA	0
bbw_z_qw	4-BW z-score <=-3	hs_pda_iv	2-PDA, medical intervention	0
bbw_z_qw	4-BW z-score <=-3	hs_pda_iv	3-PDA, surgical intervention	0
bbw_z_qw	NA	hs_pda_iv	3-PDA, surgical intervention	0
bbw_z_qw	4-BW z-score <=-3	hs_pda_iv	NA	0
bbw_z_qw	4-BW z-score <=-3	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
bbw_z_qw	NA	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
bbw_z_qw	4-BW z-score <=-3	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
bbw_z_qw	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
bbw_z_qw	4-BW z-score <=-3	non_nec_surg_abd	NA	0
bhc_z_qw	4-HC z-score <=-3	resp_supp_raw	2-nasal canula with oxygen	0
bhc_z_qw	3-HC z-score >-3 & <=-2	resp_supp_raw	NA	0
bhc_z_qw	4-HC z-score <=-3	resp_supp_raw	NA	0
bhc_z_qw	4-HC z-score <=-3	ivh	2-IVH grade I	0
bhc_z_qw	NA	ivh	2-IVH grade I	0
bhc_z_qw	NA	ivh	3-IVH grade II	0
bhc_z_qw	4-HC z-score <=-3	ivh	4-IVH grade III	0
bhc_z_qw	NA	ivh	4-IVH grade III	0
bhc_z_qw	4-HC z-score <=-3	ivh	5-IVH grade IV, unilateral	0
bhc_z_qw	NA	ivh	5-IVH grade IV, unilateral	0
bhc_z_qw	4-HC z-score <=-3	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
bhc_z_qw	NA	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
bhc_z_qw	3-HC z-score >-3 & <=-2	ivh	NA	0
bhc_z_qw	4-HC z-score <=-3	ivh	NA	0
bhc_z_qw	2-HC z-score >-2 & <=-1	cerebellar_hemorrhage	3-severe bleeding	0
bhc_z_qw	3-HC z-score >-3 & <=-2	cerebellar_hemorrhage	3-severe bleeding	0
bhc_z_qw	4-HC z-score <=-3	cerebellar_hemorrhage	3-severe bleeding	0
bhc_z_qw	NA	cerebellar_hemorrhage	3-severe bleeding	0
bhc_z_qw	3-HC z-score >-3 & <=-2	cerebellar_hemorrhage	NA	0
bhc_z_qw	4-HC z-score <=-3	cerebellar_hemorrhage	NA	0
bhc_z_qw	2-HC z-score >-2 & <=-1	ischaemic_stroke	3-ischemia, bilateral	0
bhc_z_qw	3-HC z-score >-3 & <=-2	ischaemic_stroke	3-ischemia, bilateral	0
bhc_z_qw	4-HC z-score <=-3	ischaemic_stroke	3-ischemia, bilateral	0
bhc_z_qw	3-HC z-score >-3 & <=-2	ischaemic_stroke	4-ischemia, multiple	0
bhc_z_qw	4-HC z-score <=-3	ischaemic_stroke	4-ischemia, multiple	0
bhc_z_qw	NA	ischaemic_stroke	4-ischemia, multiple	0
bhc_z_qw	3-HC z-score >-3 & <=-2	ischaemic_stroke	NA	0
bhc_z_qw	4-HC z-score <=-3	ischaemic_stroke	NA	0
bhc_z_qw	1-HC z-score >-1	ischaemic_stroke	2-ischemia, unilateral	0
bhc_z_qw	3-HC z-score >-3 & <=-2	ischaemic_stroke	2-ischemia, unilateral	0
bhc_z_qw	3-HC z-score >-3 & <=-2	hs_pda_iv	NA	0
bhc_z_qw	4-HC z-score <=-3	hs_pda_iv	NA	0
bhc_z_qw	4-HC z-score <=-3	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
bhc_z_qw	NA	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
bhc_z_qw	3-HC z-score >-3 & <=-2	non_nec_surg_abd	NA	0
bhc_z_qw	4-HC z-score <=-3	non_nec_surg_abd	NA	0
bhc_z_qw	1-HC z-score >-1	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
bhc_z_qw	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
resp_supp_raw	1-room air	ivh	2-IVH grade I	0
resp_supp_raw	2-nasal canula with oxygen	ivh	2-IVH grade I	0
resp_supp_raw	NA	ivh	2-IVH grade I	0
resp_supp_raw	1-room air	ivh	3-IVH grade II	0
resp_supp_raw	2-nasal canula with oxygen	ivh	3-IVH grade II	0
resp_supp_raw	NA	ivh	3-IVH grade II	0
resp_supp_raw	1-room air	ivh	4-IVH grade III	0
resp_supp_raw	2-nasal canula with oxygen	ivh	4-IVH grade III	0
resp_supp_raw	NA	ivh	4-IVH grade III	0
resp_supp_raw	1-room air	ivh	5-IVH grade IV, unilateral	0
resp_supp_raw	2-nasal canula with oxygen	ivh	5-IVH grade IV, unilateral	0
resp_supp_raw	4-N-IPPV	ivh	5-IVH grade IV, unilateral	0
resp_supp_raw	NA	ivh	5-IVH grade IV, unilateral	0
resp_supp_raw	1-room air	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
resp_supp_raw	2-nasal canula with oxygen	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
resp_supp_raw	NA	ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	0
resp_supp_raw	1-room air	ivh	NA	0
resp_supp_raw	2-nasal canula with oxygen	ivh	NA	0
resp_supp_raw	3-CPAP	ivh	NA	0
resp_supp_raw	4-N-IPPV	ivh	NA	0
resp_supp_raw	5-IMV	ivh	NA	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	ivh	NA	0
resp_supp_raw	1-room air	cerebellar_hemorrhage	3-severe bleeding	0
resp_supp_raw	2-nasal canula with oxygen	cerebellar_hemorrhage	3-severe bleeding	0
resp_supp_raw	3-CPAP	cerebellar_hemorrhage	3-severe bleeding	0
resp_supp_raw	4-N-IPPV	cerebellar_hemorrhage	3-severe bleeding	0
resp_supp_raw	5-IMV	cerebellar_hemorrhage	3-severe bleeding	0
resp_supp_raw	NA	cerebellar_hemorrhage	3-severe bleeding	0
resp_supp_raw	1-room air	cerebellar_hemorrhage	NA	0
resp_supp_raw	2-nasal canula with oxygen	cerebellar_hemorrhage	NA	0
resp_supp_raw	3-CPAP	cerebellar_hemorrhage	NA	0
resp_supp_raw	4-N-IPPV	cerebellar_hemorrhage	NA	0
resp_supp_raw	5-IMV	cerebellar_hemorrhage	NA	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	cerebellar_hemorrhage	NA	0
resp_supp_raw	2-nasal canula with oxygen	ischaemic_stroke	3-ischemia, bilateral	0
resp_supp_raw	3-CPAP	ischaemic_stroke	3-ischemia, bilateral	0
resp_supp_raw	4-N-IPPV	ischaemic_stroke	3-ischemia, bilateral	0
resp_supp_raw	NA	ischaemic_stroke	3-ischemia, bilateral	0
resp_supp_raw	1-room air	ischaemic_stroke	2-ischemia, unilateral	0
resp_supp_raw	2-nasal canula with oxygen	ischaemic_stroke	2-ischemia, unilateral	0
resp_supp_raw	4-N-IPPV	ischaemic_stroke	2-ischemia, unilateral	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	ischaemic_stroke	2-ischemia, unilateral	0
resp_supp_raw	NA	ischaemic_stroke	2-ischemia, unilateral	0
resp_supp_raw	1-room air	ischaemic_stroke	4-ischemia, multiple	0
resp_supp_raw	2-nasal canula with oxygen	ischaemic_stroke	4-ischemia, multiple	0
resp_supp_raw	3-CPAP	ischaemic_stroke	4-ischemia, multiple	0
resp_supp_raw	4-N-IPPV	ischaemic_stroke	4-ischemia, multiple	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	ischaemic_stroke	4-ischemia, multiple	0
resp_supp_raw	NA	ischaemic_stroke	4-ischemia, multiple	0
resp_supp_raw	1-room air	ischaemic_stroke	NA	0
resp_supp_raw	2-nasal canula with oxygen	ischaemic_stroke	NA	0
resp_supp_raw	3-CPAP	ischaemic_stroke	NA	0
resp_supp_raw	4-N-IPPV	ischaemic_stroke	NA	0
resp_supp_raw	5-IMV	ischaemic_stroke	NA	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	ischaemic_stroke	NA	0
resp_supp_raw	2-nasal canula with oxygen	hs_pda_iv	2-PDA, medical intervention	0
resp_supp_raw	NA	hs_pda_iv	2-PDA, medical intervention	0
resp_supp_raw	1-room air	hs_pda_iv	3-PDA, surgical intervention	0
resp_supp_raw	2-nasal canula with oxygen	hs_pda_iv	3-PDA, surgical intervention	0
resp_supp_raw	NA	hs_pda_iv	3-PDA, surgical intervention	0
resp_supp_raw	1-room air	hs_pda_iv	NA	0
resp_supp_raw	2-nasal canula with oxygen	hs_pda_iv	NA	0
resp_supp_raw	3-CPAP	hs_pda_iv	NA	0
resp_supp_raw	4-N-IPPV	hs_pda_iv	NA	0
resp_supp_raw	5-IMV	hs_pda_iv	NA	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	hs_pda_iv	NA	0
resp_supp_raw	1-room air	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
resp_supp_raw	2-nasal canula with oxygen	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
resp_supp_raw	4-N-IPPV	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
resp_supp_raw	NA	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
resp_supp_raw	1-room air	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
resp_supp_raw	2-nasal canula with oxygen	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
resp_supp_raw	3-CPAP	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
resp_supp_raw	4-N-IPPV	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
resp_supp_raw	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
resp_supp_raw	1-room air	non_nec_surg_abd	NA	0
resp_supp_raw	2-nasal canula with oxygen	non_nec_surg_abd	NA	0
resp_supp_raw	3-CPAP	non_nec_surg_abd	NA	0
resp_supp_raw	4-N-IPPV	non_nec_surg_abd	NA	0
resp_supp_raw	5-IMV	non_nec_surg_abd	NA	0
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	non_nec_surg_abd	NA	0
ivh	NA	cerebellar_hemorrhage	1-no bleeding	0
ivh	2-IVH grade I	cerebellar_hemorrhage	3-severe bleeding	0
ivh	3-IVH grade II	cerebellar_hemorrhage	3-severe bleeding	0
ivh	4-IVH grade III	cerebellar_hemorrhage	3-severe bleeding	0
ivh	5-IVH grade IV, unilateral	cerebellar_hemorrhage	3-severe bleeding	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	cerebellar_hemorrhage	3-severe bleeding	0
ivh	NA	cerebellar_hemorrhage	3-severe bleeding	0
ivh	1-no IVH	cerebellar_hemorrhage	NA	0
ivh	2-IVH grade I	cerebellar_hemorrhage	NA	0
ivh	3-IVH grade II	cerebellar_hemorrhage	NA	0
ivh	4-IVH grade III	cerebellar_hemorrhage	NA	0
ivh	5-IVH grade IV, unilateral	cerebellar_hemorrhage	NA	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	cerebellar_hemorrhage	NA	0
ivh	NA	ischaemic_stroke	1-no ischemia	0
ivh	2-IVH grade I	ischaemic_stroke	2-ischemia, unilateral	0
ivh	3-IVH grade II	ischaemic_stroke	2-ischemia, unilateral	0
ivh	4-IVH grade III	ischaemic_stroke	2-ischemia, unilateral	0
ivh	5-IVH grade IV, unilateral	ischaemic_stroke	2-ischemia, unilateral	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	ischaemic_stroke	2-ischemia, unilateral	0
ivh	NA	ischaemic_stroke	2-ischemia, unilateral	0
ivh	2-IVH grade I	ischaemic_stroke	3-ischemia, bilateral	0
ivh	3-IVH grade II	ischaemic_stroke	3-ischemia, bilateral	0
ivh	4-IVH grade III	ischaemic_stroke	3-ischemia, bilateral	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	ischaemic_stroke	3-ischemia, bilateral	0
ivh	NA	ischaemic_stroke	3-ischemia, bilateral	0
ivh	2-IVH grade I	ischaemic_stroke	4-ischemia, multiple	0
ivh	3-IVH grade II	ischaemic_stroke	4-ischemia, multiple	0
ivh	4-IVH grade III	ischaemic_stroke	4-ischemia, multiple	0
ivh	5-IVH grade IV, unilateral	ischaemic_stroke	4-ischemia, multiple	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	ischaemic_stroke	4-ischemia, multiple	0
ivh	NA	ischaemic_stroke	4-ischemia, multiple	0
ivh	1-no IVH	ischaemic_stroke	NA	0
ivh	2-IVH grade I	ischaemic_stroke	NA	0
ivh	3-IVH grade II	ischaemic_stroke	NA	0
ivh	4-IVH grade III	ischaemic_stroke	NA	0
ivh	5-IVH grade IV, unilateral	ischaemic_stroke	NA	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	ischaemic_stroke	NA	0
ivh	NA	hs_pda_iv	1-no PDA/PDA, no intervention	0
ivh	4-IVH grade III	hs_pda_iv	2-PDA, medical intervention	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	hs_pda_iv	2-PDA, medical intervention	0
ivh	NA	hs_pda_iv	2-PDA, medical intervention	0
ivh	2-IVH grade I	hs_pda_iv	3-PDA, surgical intervention	0
ivh	3-IVH grade II	hs_pda_iv	3-PDA, surgical intervention	0
ivh	4-IVH grade III	hs_pda_iv	3-PDA, surgical intervention	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	hs_pda_iv	3-PDA, surgical intervention	0
ivh	NA	hs_pda_iv	3-PDA, surgical intervention	0
ivh	1-no IVH	hs_pda_iv	NA	0
ivh	2-IVH grade I	hs_pda_iv	NA	0
ivh	3-IVH grade II	hs_pda_iv	NA	0
ivh	4-IVH grade III	hs_pda_iv	NA	0
ivh	5-IVH grade IV, unilateral	hs_pda_iv	NA	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	hs_pda_iv	NA	0
ivh	NA	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ivh	2-IVH grade I	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ivh	3-IVH grade II	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ivh	4-IVH grade III	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ivh	5-IVH grade IV, unilateral	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ivh	NA	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ivh	2-IVH grade I	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ivh	3-IVH grade II	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ivh	4-IVH grade III	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ivh	5-IVH grade IV, unilateral	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ivh	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ivh	1-no IVH	non_nec_surg_abd	NA	0
ivh	2-IVH grade I	non_nec_surg_abd	NA	0
ivh	3-IVH grade II	non_nec_surg_abd	NA	0
ivh	4-IVH grade III	non_nec_surg_abd	NA	0
ivh	5-IVH grade IV, unilateral	non_nec_surg_abd	NA	0
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	non_nec_surg_abd	NA	0
cerebellar_hemorrhage	NA	ischaemic_stroke	1-no ischemia	0
cerebellar_hemorrhage	3-severe bleeding	ischaemic_stroke	2-ischemia, unilateral	0
cerebellar_hemorrhage	NA	ischaemic_stroke	2-ischemia, unilateral	0
cerebellar_hemorrhage	3-severe bleeding	ischaemic_stroke	3-ischemia, bilateral	0
cerebellar_hemorrhage	NA	ischaemic_stroke	3-ischemia, bilateral	0
cerebellar_hemorrhage	3-severe bleeding	ischaemic_stroke	4-ischemia, multiple	0
cerebellar_hemorrhage	NA	ischaemic_stroke	4-ischemia, multiple	0
cerebellar_hemorrhage	1-no bleeding	ischaemic_stroke	NA	0
cerebellar_hemorrhage	3-severe bleeding	ischaemic_stroke	NA	0
cerebellar_hemorrhage	NA	hs_pda_iv	1-no PDA/PDA, no intervention	0
cerebellar_hemorrhage	3-severe bleeding	hs_pda_iv	2-PDA, medical intervention	0
cerebellar_hemorrhage	NA	hs_pda_iv	2-PDA, medical intervention	0
cerebellar_hemorrhage	3-severe bleeding	hs_pda_iv	3-PDA, surgical intervention	0
cerebellar_hemorrhage	NA	hs_pda_iv	3-PDA, surgical intervention	0
cerebellar_hemorrhage	1-no bleeding	hs_pda_iv	NA	0
cerebellar_hemorrhage	3-severe bleeding	hs_pda_iv	NA	0
cerebellar_hemorrhage	NA	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
cerebellar_hemorrhage	3-severe bleeding	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
cerebellar_hemorrhage	NA	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
cerebellar_hemorrhage	3-severe bleeding	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
cerebellar_hemorrhage	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
cerebellar_hemorrhage	1-no bleeding	non_nec_surg_abd	NA	0
cerebellar_hemorrhage	3-severe bleeding	non_nec_surg_abd	NA	0
ischaemic_stroke	NA	hs_pda_iv	1-no PDA/PDA, no intervention	0
ischaemic_stroke	2-ischemia, unilateral	hs_pda_iv	2-PDA, medical intervention	0
ischaemic_stroke	3-ischemia, bilateral	hs_pda_iv	2-PDA, medical intervention	0
ischaemic_stroke	4-ischemia, multiple	hs_pda_iv	2-PDA, medical intervention	0
ischaemic_stroke	NA	hs_pda_iv	2-PDA, medical intervention	0
ischaemic_stroke	2-ischemia, unilateral	hs_pda_iv	3-PDA, surgical intervention	0
ischaemic_stroke	3-ischemia, bilateral	hs_pda_iv	3-PDA, surgical intervention	0
ischaemic_stroke	4-ischemia, multiple	hs_pda_iv	3-PDA, surgical intervention	0
ischaemic_stroke	NA	hs_pda_iv	3-PDA, surgical intervention	0
ischaemic_stroke	1-no ischemia	hs_pda_iv	NA	0
ischaemic_stroke	2-ischemia, unilateral	hs_pda_iv	NA	0
ischaemic_stroke	3-ischemia, bilateral	hs_pda_iv	NA	0
ischaemic_stroke	4-ischemia, multiple	hs_pda_iv	NA	0
ischaemic_stroke	NA	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
ischaemic_stroke	2-ischemia, unilateral	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ischaemic_stroke	3-ischemia, bilateral	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ischaemic_stroke	4-ischemia, multiple	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ischaemic_stroke	NA	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
ischaemic_stroke	2-ischemia, unilateral	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ischaemic_stroke	3-ischemia, bilateral	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ischaemic_stroke	4-ischemia, multiple	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ischaemic_stroke	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
ischaemic_stroke	1-no ischemia	non_nec_surg_abd	NA	0
ischaemic_stroke	2-ischemia, unilateral	non_nec_surg_abd	NA	0
ischaemic_stroke	3-ischemia, bilateral	non_nec_surg_abd	NA	0
ischaemic_stroke	4-ischemia, multiple	non_nec_surg_abd	NA	0
hs_pda_iv	NA	non_nec_surg_abd	1-no NEC/NEC, no surgery	0
hs_pda_iv	2-PDA, medical intervention	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
hs_pda_iv	3-PDA, surgical intervention	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
hs_pda_iv	NA	non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	0
hs_pda_iv	3-PDA, surgical intervention	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
hs_pda_iv	NA	non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	0
hs_pda_iv	1-no PDA/PDA, no intervention	non_nec_surg_abd	NA	0
hs_pda_iv	2-PDA, medical intervention	non_nec_surg_abd	NA	0
hs_pda_iv	3-PDA, surgical intervention	non_nec_surg_abd	NA	0

Figure 3. Correlation matrix. *, based on p-value (frequentist) or 95% CI (Bayesian); †, pair of variable and its missingness; ‡, at least 1 variable was a categorical variable with a category of 1 value; §, insufficient sample size.

Missing value imputation

Descriptive statistics

Table 11. Sample characteristics by survival.

unit	N	variable	value	survive 0-no	survive 1-yes	cor.p.value
id|t	20551	total (prevalence)	n (%)	811 (3.95)	19740 (96.05)
		resp_supp_raw	1-room air % (n)	0 (0)	11 (2191)	<0.001
			2-nasal canula with oxygen % (n)	0 (3)	1 (101)
			3-CPAP % (n)	19 (153)	68 (13430)
			4-N-IPPV % (n)	22 (181)	8 (1637)
			5-IMV % (n)	36 (296)	10 (1963)
			6-IMV+iNO/HFOV/HFOV+iNO % (n)	22 (178)	2 (418)
		fio2_raw	average (SD)	42.98 (24.43)	24.79 (8.75)	<0.001
		resp_supp_agg_cum_day_qw	average (SD)	9.24 (8.85)	3.44 (6.83)	<0.001
		fio2_cum_day_qw	average (SD)	15.68 (11.54)	8.53 (10.87)	<0.001
		fio2_cum_level_qw	average (SD)	291 (257.8)	91.98 (183.55)	<0.001
		resp_supp_agg_cum_day_pct	average (SD)	62.41 (32.72)	49.99 (23.82)	<0.001
		fio2_cum_day_pct	average (SD)	65.29 (31.34)	50.47 (28.21)	<0.001
		fio2_cum_level_pct	average (SD)	73.35 (29.73)	49.36 (28.33)	<0.001
		steroid_postnatal	0 % (n)	96 (776)	99 (19446)	<0.001
			2 % (n)	4 (35)	1 (294)
		bbw_z_qw	1-BW z-score >-1 % (n)	55 (446)	58 (11466)	<0.001
			2-BW z-score >-2 & <=-1 % (n)	29 (234)	37 (7350)
			3-BW z-score >-3 & <=-2 % (n)	16 (129)	4 (840)
			4-BW z-score <=-3 % (n)	0 (2)	0 (84)
		bhc_z_qw	1-HC z-score >-1 % (n)	40 (326)	43 (8495)	<0.001
			2-HC z-score >-2 & <=-1 % (n)	34 (278)	37 (7268)
			3-HC z-score >-3 & <=-2 % (n)	13 (107)	15 (3056)
			4-HC z-score <=-3 % (n)	12 (100)	5 (921)
		inotropic	0 % (n)	63 (513)	93 (18360)	<0.001
			2 % (n)	15 (121)	4 (799)
			4 % (n)	10 (81)	2 (443)
			6 % (n)	12 (96)	1 (138)
		blood_volume	0 % (n)	81 (660)	98 (19291)	<0.001
			4 % (n)	16 (129)	2 (427)
			6 % (n)	3 (22)	0 (22)
		transfusion	0 % (n)	80 (645)	95 (18673)	<0.001
			2 % (n)	20 (166)	5 (1067)
		blood_culture	0 % (n)	89 (718)	95 (18724)	<0.001
			2 % (n)	9 (76)	5 (901)
			6 % (n)	2 (17)	1 (115)
		plt	0 % (n)	69 (558)	89 (17517)	<0.001
			1 % (n)	14 (110)	6 (1155)
			2 % (n)	11 (89)	3 (673)
			4 % (n)	6 (52)	2 (366)
			6 % (n)	0 (2)	0 (29)
		wbc	0 % (n)	97 (787)	97 (19207)	>0.05
			2 % (n)	2 (19)	2 (423)
			4 % (n)	1 (5)	1 (110)
		feeding	0 % (n)	50 (405)	14 (2824)	<0.001
			1 % (n)	31 (252)	24 (4834)
			2 % (n)	6 (47)	8 (1586)
			3 % (n)	7 (58)	8 (1489)
			4 % (n)	2 (20)	4 (754)
			5 % (n)	1 (11)	4 (716)
			6 % (n)	2 (18)	38 (7537)
		ivh	1-no IVH % (n)	97 (783)	99 (19617)	<0.001
			2-IVH grade I % (n)	0 (1)	0 (43)
			3-IVH grade II % (n)	1 (9)	0 (60)
			4-IVH grade III % (n)	0 (4)	0 (8)
			5-IVH grade IV, unilateral % (n)	1 (9)	0 (8)
			6-IVH grade IV, bilateral/IVH grade III with hydrocephalus % (n)	1 (5)	0 (4)
		cerebellar_hemorrhage	1-no bleeding % (n)	100 (808)	100 (19739)	<0.001
			3-severe bleeding % (n)	0 (3)	0 (1)
		ischaemic_stroke	1-no ischemia % (n)	100 (807)	100 (19735)	<0.001
			2-ischemia, unilateral % (n)	0 (1)	0 (2)
			3-ischemia, bilateral % (n)	0 (3)	0 (1)
			4-ischemia, multiple % (n)	0 (0)	0 (2)
		hs_pda_iv	1-no PDA/PDA, no intervention % (n)	95 (774)	97 (19220)	<0.001
			2-PDA, medical intervention % (n)	4 (34)	2 (466)
			3-PDA, surgical intervention % (n)	0 (3)	0 (54)
		nec	0 % (n)	100 (811)	100 (19684)	<0.001
			2 % (n)	0 (0)	0 (38)
			3 % (n)	0 (0)	0 (11)
			4 % (n)	0 (0)	0 (4)
			5 % (n)	0 (0)	0 (1)
			6 % (n)	0 (0)	0 (2)
		non_nec_surg_abd	1-no NEC/NEC, no surgery % (n)	100 (808)	100 (19722)	<0.001
			2-SIP/meconium ileus/volvulus/obstruction % (n)	0 (3)	0 (10)
			3-SIP/meconium ileus/volvulus/obstruction with stomy % (n)	0 (0)	0 (8)
		aki	0 % (n)	96 (779)	100 (19681)	<0.001
			2 % (n)	1 (8)	0 (33)
			4 % (n)	1 (5)	0 (14)
			6 % (n)	2 (19)	0 (12)
id	537	total (prevalence)	n (%)	67 (12.48)	470 (87.52)
		socioeconomic_status	1-highest % (n)	3 (2)	1 (7)	<0.001
			2-second highest % (n)	16 (11)	23 (107)
			3-medium % (n)	42 (28)	50 (236)
			4-second lowest % (n)	30 (20)	23 (108)
			5-lowest % (n)	9 (6)	3 (12)
		education_status	1-postgraduate % (n)	10 (7)	8 (38)	<0.001
			2-college % (n)	36 (24)	44 (208)
			3-college, vocational % (n)	12 (8)	12 (57)
			4-high school % (n)	6 (4)	6 (26)
			5-high school, vocational % (n)	27 (18)	23 (110)
			6-junior high school % (n)	7 (5)	6 (27)
			7-elementary school % (n)	1 (1)	1 (4)
		maternal_age	average (SD)	31.33 (5.75)	33.05 (5.17)	>0.05
		ivf	0-no % (n)	82 (55)	76 (355)	<0.001
			1-yes % (n)	18 (12)	24 (115)
		pe	0-no % (n)	78 (52)	79 (373)	<0.001
			1-yes % (n)	22 (15)	21 (97)
		gdm	0-no % (n)	94 (63)	95 (448)	<0.001
			1-yes % (n)	6 (4)	5 (22)
		cs	0-no % (n)	40 (27)	35 (166)	0.024
			1-yes % (n)	60 (40)	65 (304)
		gravida	average (SD)	2.33 (1.45)	2.4 (1.4)	<0.001
		bbw_g	average (SD)	689.84 (262.58)	1015.26 (285.02)	<0.001
		ga_wk	average (SD)	24.67 (2.08)	27.39 (2.11)	<0.001
		sex	0-female % (n)	40 (27)	44 (207)	>0.05
			1-male % (n)	60 (40)	56 (263)
		multiple_gestation	0-no % (n)	67 (45)	70 (327)	0.004
			1-yes % (n)	33 (22)	30 (143)
		as1	0 % (n)	75 (50)	21 (99)	<0.001
			1 % (n)	21 (14)	30 (139)
			2 % (n)	4 (3)	42 (197)
			4 % (n)	0 (0)	7 (35)
		as5	0 % (n)	31 (21)	4 (20)	<0.001
			1 % (n)	24 (16)	9 (41)
			2 % (n)	34 (23)	29 (134)
			4 % (n)	10 (7)	59 (275)
		resuscitation_at_birth	0 % (n)	40 (27)	87 (407)	<0.001
			6 % (n)	60 (40)	13 (63)
		birthtime_scoring	1-born 08:00-16:59 % (n)	52 (35)	51 (239)	<0.001
			2-born 17:00-23:59 % (n)	18 (12)	28 (131)
			3-born 00:00-07:59 % (n)	30 (20)	21 (100)
		steroid_antenatal	0 % (n)	16 (11)	5 (25)	<0.001
			2 % (n)	36 (24)	28 (130)
			4 % (n)	48 (32)	67 (315)
		chorioamnionitis	0-no % (n)	85 (57)	88 (413)	<0.001
			1-yes % (n)	15 (10)	12 (57)
		surfactant	0 % (n)	19 (13)	66 (312)	<0.001
			2 % (n)	81 (54)	34 (158)
		bbw_z	0 % (n)	7 (5)	1 (6)	<0.001
			2 % (n)	15 (10)	8 (37)
			4 % (n)	78 (52)	91 (427)
		bhc_z	0 % (n)	9 (6)	5 (24)	<0.001
			2 % (n)	13 (9)	9 (41)
			4 % (n)	78 (52)	86 (405)
		death_age	average (SD)	19.95 (41.99)	N/A
	546	total (prevalence)	n (%)	67 (12.27)	479 (87.73)
		pvl	1-no PVL % (n)	100 (67)	98 (470)
			2-PVL focal, unilateral % (n)	0 (0)	0 (1)
			3-PVL focal, bilateral % (n)	0 (0)	1 (6)
			4-PVL extensive, bilateral % (n)	0 (0)	0 (2)

Table 12. Sample characteristics by other outcomes.

unit	N	variable	value	rop_severe 0-none/stage I/stage II	rop_severe 1-stage II+	rop_severe (missing)	bpd_grade 0-no BPD	bpd_grade 1-mild BPD	bpd_grade 2-moderate/severe BPD	bpd_grade (missing)	eugr_hc 0-HC z-score at birth >=-1.5	eugr_hc 1-HC z-score at birth <-1.5	eugr_hc (missing)	eugr_bw 0-BW z-score at birth >=-1.5	eugr_bw 1-BW z-score at birth <-1.5	eugr_bw (missing)	hearing 0-passed	hearing 1-failed	hearing (missing)
id|t	20551	total (prevalence)	n (%)	17598 (85.63)	2394 (11.65)	559 (2.72)	13272 (64.58)	714 (3.47)	6006 (29.22)	559 (2.72)	15456 (75.21)	4494 (21.87)	601 (2.92)	16044 (78.07)	3906 (19.01)	601 (2.92)	17724 (86.24)	1554 (7.56)	1273 (6.19)
		resp_supp_raw	1-room air % (n)	12 (2173)	1 (18)	0 (0)	16 (2186)	1 (5)	0 (0)	0 (0)	13 (2040)	3 (151)	0 (0)	13 (2038)	4 (153)	0 (0)	12 (2066)	3 (50)	6 (75)
			2-nasal canula with oxygen % (n)	1 (104)	0 (0)	0 (0)	1 (99)	0 (1)	0 (4)	0 (0)	1 (103)	0 (1)	0 (0)	1 (99)	0 (5)	0 (0)	1 (95)	0 (0)	1 (9)
			3-CPAP % (n)	72 (12690)	35 (836)	10 (57)	76 (10147)	79 (565)	47 (2814)	10 (57)	73 (11322)	49 (2188)	12 (73)	72 (11517)	51 (1993)	12 (73)	70 (12451)	44 (682)	35 (450)
			4-N-IPPV % (n)	7 (1144)	24 (582)	16 (92)	3 (442)	11 (75)	20 (1209)	16 (92)	6 (875)	18 (827)	19 (116)	6 (945)	19 (757)	19 (116)	7 (1212)	25 (386)	17 (220)
			5-IMV % (n)	7 (1162)	35 (830)	48 (267)	3 (358)	8 (54)	26 (1580)	48 (267)	6 (939)	23 (1051)	45 (269)	7 (1200)	20 (790)	45 (269)	9 (1540)	25 (389)	26 (330)
			6-IMV+iNO/HFOV/HFOV+iNO % (n)	2 (325)	5 (128)	26 (143)	0 (40)	2 (14)	7 (399)	26 (143)	1 (177)	6 (276)	24 (143)	2 (245)	5 (208)	24 (143)	2 (360)	3 (47)	15 (189)
		fio2_raw	average (SD)	23.96 (7.71)	32.07 (13.02)	46.27 (27.23)	22.17 (3.76)	25.25 (7.14)	30.99 (13.18)	46.27 (27.23)	23.57 (6.63)	29.5 (13.15)	45.62 (26.51)	24.14 (7.77)	28.03 (12.02)	45.62 (26.51)	24.47 (8.5)	28.68 (10.66)	36.13 (22.03)
		resp_supp_agg_cum_day_qw	average (SD)	2.49 (5.41)	10.82 (10.92)	10.18 (8.34)	0.99 (2.53)	3.32 (4.95)	9.03 (9.81)	10.18 (8.34)	2.22 (5.16)	7.87 (9.73)	9.61 (8.31)	2.66 (6.08)	6.93 (8.72)	9.61 (8.31)	3.06 (6.5)	7.77 (8.89)	7.12 (8.51)
		fio2_cum_day_qw	average (SD)	7.45 (10.11)	17.99 (12.67)	12.5 (9.74)	4.76 (7.61)	12.9 (11.21)	16.95 (12.46)	12.5 (9.74)	6.97 (9.8)	14.57 (12.65)	13.13 (10.17)	7.5 (10.39)	13.53 (11.95)	13.13 (10.17)	7.97 (10.54)	14.73 (12.57)	13.36 (11.54)
		fio2_cum_level_qw	average (SD)	73.19 (160.55)	257.73 (271.11)	262.24 (244.43)	31.88 (59.45)	112.96 (133.38)	233.3 (280.85)	262.24 (244.43)	63.49 (135.77)	202.7 (277.05)	265.2 (243.39)	77.01 (165.14)	168.14 (244.61)	265.2 (243.39)	84.91 (178.57)	173.89 (229.85)	217.16 (238.77)
		resp_supp_agg_cum_day_pct	average (SD)	49.54 (23.22)	54.45 (28.82)	63.14 (32.03)	45.36 (19.7)	53.86 (24.62)	60.2 (28.92)	63.14 (32.03)	48.02 (21.77)	57.1 (29.38)	64.18 (31.13)	48.33 (22.09)	57.2 (29.58)	64.18 (31.13)	49.41 (22.99)	56.25 (30.95)	58.33 (30.52)
		fio2_cum_day_pct	average (SD)	50.54 (28.31)	53.71 (29.09)	56.08 (30.49)	44.22 (26.83)	67.3 (22.89)	63.76 (27.2)	56.08 (30.49)	49.22 (27.88)	56.36 (29.39)	58.69 (30.94)	49.63 (28.16)	55.75 (28.75)	58.69 (30.94)	49.87 (28.5)	53.29 (23.99)	64.89 (29.52)
		fio2_cum_level_pct	average (SD)	49.68 (28.53)	50.48 (28.27)	69.47 (31.56)	43.79 (27.07)	64.54 (23.63)	61.25 (27.96)	69.47 (31.56)	47.82 (27.84)	56.11 (29.61)	71.03 (31.19)	48.03 (28.09)	56.49 (28.96)	71.03 (31.19)	49.1 (28.47)	47.97 (26.09)	69.98 (28.9)
		steroid_postnatal	0 % (n)	99 (17451)	93 (2233)	96 (538)	100 (13244)	99 (707)	95 (5733)	96 (538)	99 (15288)	97 (4354)	97 (580)	99 (15841)	97 (3801)	97 (580)	99 (17472)	97 (1512)	97 (1238)
			2 % (n)	1 (147)	7 (161)	4 (21)	0 (28)	1 (7)	5 (273)	4 (21)	1 (168)	3 (140)	3 (21)	1 (203)	3 (105)	3 (21)	1 (252)	3 (42)	3 (35)
		bbw_z_qw	1-BW z-score >-1 % (n)	60 (10520)	43 (1023)	66 (369)	65 (8680)	68 (482)	40 (2381)	66 (369)	59 (9172)	52 (2350)	65 (390)	60 (9625)	49 (1897)	65 (390)	60 (10609)	38 (591)	56 (712)
			2-BW z-score >-2 & <=-1 % (n)	35 (6140)	54 (1294)	27 (150)	32 (4186)	28 (197)	51 (3051)	27 (150)	36 (5521)	42 (1899)	27 (164)	36 (5719)	44 (1701)	27 (164)	36 (6345)	53 (816)	33 (423)
			3-BW z-score >-3 & <=-2 % (n)	5 (852)	3 (77)	7 (40)	3 (378)	5 (35)	9 (516)	7 (40)	4 (684)	5 (238)	8 (47)	4 (670)	6 (252)	8 (47)	4 (700)	9 (133)	11 (136)
			4-BW z-score <=-3 % (n)	0 (86)	0 (0)	0 (0)	0 (28)	0 (0)	1 (58)	0 (0)	1 (79)	0 (7)	0 (0)	0 (30)	1 (56)	0 (0)	0 (70)	1 (14)	0 (2)
		bhc_z_qw	1-HC z-score >-1 % (n)	45 (7998)	23 (556)	48 (267)	52 (6889)	26 (189)	25 (1476)	48 (267)	45 (6939)	35 (1578)	51 (304)	46 (7387)	29 (1130)	51 (304)	45 (7922)	23 (355)	43 (544)
			2-HC z-score >-2 & <=-1 % (n)	36 (6417)	38 (921)	37 (208)	36 (4829)	46 (332)	36 (2177)	37 (208)	38 (5876)	32 (1459)	35 (211)	37 (5900)	37 (1435)	35 (211)	37 (6578)	36 (566)	32 (402)
			3-HC z-score >-3 & <=-2 % (n)	14 (2384)	29 (696)	15 (83)	10 (1265)	25 (179)	27 (1636)	15 (83)	13 (1999)	24 (1079)	14 (85)	13 (2130)	24 (948)	14 (85)	15 (2570)	24 (373)	17 (220)
			4-HC z-score <=-3 % (n)	5 (799)	9 (221)	0 (1)	2 (289)	2 (14)	12 (717)	0 (1)	4 (642)	8 (378)	0 (1)	4 (627)	10 (393)	0 (1)	4 (654)	17 (260)	8 (107)
		inotropic	0 % (n)	94 (16629)	81 (1943)	54 (301)	97 (12817)	95 (679)	85 (5076)	54 (301)	95 (14745)	84 (3785)	57 (343)	95 (15187)	86 (3343)	57 (343)	94 (16617)	85 (1319)	74 (937)
			2 % (n)	3 (563)	11 (261)	17 (96)	2 (282)	3 (19)	9 (523)	17 (96)	3 (464)	8 (360)	16 (96)	3 (541)	7 (283)	16 (96)	4 (633)	9 (144)	11 (143)
			4 % (n)	2 (310)	6 (143)	13 (71)	1 (150)	2 (15)	5 (288)	13 (71)	1 (201)	6 (252)	12 (71)	2 (243)	5 (210)	12 (71)	2 (370)	4 (63)	7 (91)
			6 % (n)	1 (96)	2 (47)	16 (91)	0 (23)	0 (1)	2 (119)	16 (91)	0 (46)	2 (97)	15 (91)	0 (73)	2 (70)	15 (91)	1 (104)	2 (28)	8 (102)
		blood_volume	0 % (n)	98 (17276)	94 (2261)	74 (414)	98 (13053)	97 (696)	96 (5788)	74 (414)	99 (15232)	95 (4263)	76 (456)	98 (15803)	95 (3692)	76 (456)	98 (17363)	95 (1482)	87 (1106)
			4 % (n)	2 (313)	5 (120)	22 (123)	2 (213)	2 (17)	3 (203)	22 (123)	1 (216)	5 (217)	20 (123)	1 (231)	5 (202)	20 (123)	2 (345)	4 (66)	11 (145)
			6 % (n)	0 (9)	1 (13)	4 (22)	0 (6)	0 (1)	0 (15)	4 (22)	0 (8)	0 (14)	4 (22)	0 (10)	0 (12)	4 (22)	0 (16)	0 (6)	2 (22)
		transfusion	0 % (n)	95 (16800)	88 (2098)	75 (420)	97 (12844)	94 (668)	90 (5386)	75 (420)	96 (14793)	90 (4063)	77 (462)	95 (15309)	91 (3547)	77 (462)	95 (16853)	89 (1383)	85 (1082)
			2 % (n)	5 (798)	12 (296)	25 (139)	3 (428)	6 (46)	10 (620)	25 (139)	4 (663)	10 (431)	23 (139)	5 (735)	9 (359)	23 (139)	5 (871)	11 (171)	15 (191)
		blood_culture	0 % (n)	95 (16798)	90 (2154)	88 (490)	96 (12783)	93 (667)	92 (5502)	88 (490)	96 (14824)	91 (4089)	88 (529)	96 (15344)	91 (3569)	88 (529)	95 (16887)	90 (1395)	91 (1160)
			2 % (n)	4 (716)	9 (207)	10 (54)	3 (445)	6 (42)	7 (436)	10 (54)	4 (580)	8 (341)	9 (56)	4 (631)	7 (290)	9 (56)	4 (754)	8 (127)	8 (96)
			6 % (n)	0 (84)	1 (33)	3 (15)	0 (44)	1 (5)	1 (68)	3 (15)	0 (52)	1 (64)	3 (16)	0 (69)	1 (47)	3 (16)	0 (83)	2 (32)	1 (17)
		plt	0 % (n)	90 (15751)	80 (1918)	73 (406)	91 (12143)	95 (677)	81 (4849)	73 (406)	91 (14133)	78 (3504)	73 (438)	91 (14588)	78 (3049)	73 (438)	90 (15927)	75 (1159)	78 (989)
			1 % (n)	6 (968)	9 (226)	13 (71)	5 (615)	4 (30)	9 (549)	13 (71)	5 (725)	10 (464)	13 (76)	5 (790)	10 (399)	13 (76)	5 (958)	12 (184)	10 (123)
			2 % (n)	3 (559)	6 (155)	9 (48)	2 (316)	1 (4)	7 (394)	9 (48)	2 (379)	7 (334)	8 (49)	3 (416)	8 (297)	8 (49)	3 (523)	9 (135)	8 (104)
			4 % (n)	2 (295)	4 (90)	6 (33)	1 (182)	0 (2)	3 (201)	6 (33)	1 (198)	4 (183)	6 (37)	1 (228)	4 (153)	6 (37)	2 (292)	5 (72)	4 (54)
			6 % (n)	0 (25)	0 (5)	0 (1)	0 (16)	0 (1)	0 (13)	0 (1)	0 (21)	0 (9)	0 (1)	0 (22)	0 (8)	0 (1)	0 (24)	0 (4)	0 (3)
		wbc	0 % (n)	97 (17137)	97 (2318)	96 (539)	98 (12953)	96 (686)	97 (5816)	96 (539)	97 (15056)	97 (4358)	97 (580)	98 (15649)	96 (3765)	97 (580)	97 (17256)	97 (1503)	97 (1235)
			2 % (n)	2 (371)	2 (55)	3 (16)	2 (265)	3 (22)	2 (139)	3 (16)	2 (319)	2 (107)	3 (16)	2 (317)	3 (109)	3 (16)	2 (376)	2 (35)	2 (31)
			4 % (n)	1 (90)	1 (21)	1 (4)	0 (54)	1 (6)	1 (51)	1 (4)	1 (81)	1 (29)	1 (5)	0 (78)	1 (32)	1 (5)	1 (92)	1 (16)	1 (7)
		feeding	0 % (n)	13 (2252)	26 (623)	63 (354)	10 (1393)	15 (106)	23 (1376)	63 (354)	11 (1695)	26 (1173)	60 (361)	11 (1793)	28 (1075)	60 (361)	13 (2322)	29 (447)	36 (460)
			1 % (n)	23 (4035)	37 (897)	28 (154)	22 (2901)	30 (211)	30 (1820)	28 (154)	23 (3503)	31 (1405)	30 (178)	22 (3578)	34 (1330)	30 (178)	24 (4209)	34 (536)	27 (341)
			2 % (n)	8 (1405)	9 (209)	3 (19)	8 (1019)	11 (79)	9 (516)	3 (19)	8 (1256)	8 (354)	4 (23)	8 (1309)	8 (301)	4 (23)	8 (1424)	8 (131)	6 (78)
			3 % (n)	8 (1340)	7 (178)	5 (29)	7 (965)	10 (73)	8 (480)	5 (29)	8 (1196)	7 (317)	6 (34)	8 (1235)	7 (278)	6 (34)	8 (1337)	8 (131)	6 (79)
			4 % (n)	4 (695)	3 (76)	1 (3)	4 (502)	5 (36)	4 (233)	1 (3)	4 (613)	3 (156)	1 (5)	4 (660)	3 (109)	1 (5)	4 (688)	3 (53)	3 (33)
			5 % (n)	4 (662)	3 (65)	0 (0)	4 (514)	3 (19)	3 (194)	0 (0)	4 (603)	3 (124)	0 (0)	4 (611)	3 (116)	0 (0)	4 (670)	2 (36)	2 (21)
			6 % (n)	41 (7209)	14 (346)	0 (0)	45 (5978)	27 (190)	23 (1387)	0 (0)	43 (6590)	21 (965)	0 (0)	43 (6858)	18 (697)	0 (0)	40 (7074)	14 (220)	21 (261)
		ivh	1-no IVH % (n)	99 (17505)	99 (2363)	95 (532)	100 (13216)	99 (710)	99 (5942)	95 (532)	99 (15376)	99 (4450)	96 (574)	99 (15949)	99 (3877)	96 (574)	99 (17617)	99 (1539)	98 (1244)
			2-IVH grade I % (n)	0 (40)	0 (4)	0 (0)	0 (33)	0 (0)	0 (11)	0 (0)	0 (34)	0 (10)	0 (0)	0 (37)	0 (7)	0 (0)	0 (42)	0 (1)	0 (1)
			3-IVH grade II % (n)	0 (43)	1 (17)	2 (9)	0 (20)	0 (3)	1 (37)	2 (9)	0 (41)	0 (19)	1 (9)	0 (46)	0 (14)	1 (9)	0 (52)	1 (8)	1 (9)
			4-IVH grade III % (n)	0 (5)	0 (3)	1 (4)	0 (1)	0 (1)	0 (6)	1 (4)	0 (4)	0 (4)	1 (4)	0 (5)	0 (3)	1 (4)	0 (6)	0 (2)	0 (4)
			5-IVH grade IV, unilateral % (n)	0 (3)	0 (5)	2 (9)	0 (1)	0 (0)	0 (7)	2 (9)	0 (1)	0 (7)	1 (9)	0 (5)	0 (3)	1 (9)	0 (5)	0 (2)	1 (10)
			6-IVH grade IV, bilateral/IVH grade III with hydrocephalus % (n)	0 (2)	0 (2)	1 (5)	0 (1)	0 (0)	0 (3)	1 (5)	0 (0)	0 (4)	1 (5)	0 (2)	0 (2)	1 (5)	0 (2)	0 (2)	0 (5)
		cerebellar_hemorrhage	1-no bleeding % (n)	100 (17597)	100 (2394)	99 (556)	100 (13272)	100 (714)	100 (6005)	99 (556)	100 (15456)	100 (4493)	100 (598)	100 (16044)	100 (3905)	100 (598)	100 (17723)	100 (1554)	100 (1270)
			3-severe bleeding % (n)	0 (1)	0 (0)	1 (3)	0 (0)	0 (0)	0 (1)	1 (3)	0 (0)	0 (1)	0 (3)	0 (0)	0 (1)	0 (3)	0 (1)	0 (0)	0 (3)
		ischaemic_stroke	1-no ischemia % (n)	100 (17592)	100 (2393)	100 (557)	100 (13270)	100 (714)	100 (6001)	100 (557)	100 (15454)	100 (4489)	100 (599)	100 (16038)	100 (3905)	100 (599)	100 (17721)	100 (1553)	100 (1268)
			2-ischemia, unilateral % (n)	0 (3)	0 (0)	0 (0)	0 (1)	0 (0)	0 (2)	0 (0)	0 (2)	0 (1)	0 (0)	0 (2)	0 (1)	0 (0)	0 (1)	0 (1)	0 (1)
			3-ischemia, bilateral % (n)	0 (2)	0 (0)	0 (2)	0 (1)	0 (0)	0 (1)	0 (2)	0 (0)	0 (2)	0 (2)	0 (2)	0 (0)	0 (2)	0 (1)	0 (0)	0 (3)
			4-ischemia, multiple % (n)	0 (1)	0 (1)	0 (0)	0 (0)	0 (0)	0 (2)	0 (0)	0 (0)	0 (2)	0 (0)	0 (2)	0 (0)	0 (0)	0 (1)	0 (0)	0 (1)
		hs_pda_iv	1-no PDA/PDA, no intervention % (n)	98 (17181)	96 (2287)	94 (526)	98 (13061)	98 (700)	95 (5707)	94 (526)	98 (15102)	96 (4324)	95 (568)	98 (15668)	96 (3758)	95 (568)	98 (17289)	95 (1474)	97 (1231)
			2-PDA, medical intervention % (n)	2 (377)	4 (93)	5 (30)	1 (191)	2 (13)	4 (266)	5 (30)	2 (320)	3 (150)	5 (30)	2 (340)	3 (130)	5 (30)	2 (390)	5 (72)	3 (38)
			3-PDA, surgical intervention % (n)	0 (40)	1 (14)	1 (3)	0 (20)	0 (1)	1 (33)	1 (3)	0 (34)	0 (20)	0 (3)	0 (36)	0 (18)	0 (3)	0 (45)	1 (8)	0 (4)
		nec	0 % (n)	100 (17548)	100 (2388)	100 (559)	100 (13231)	100 (712)	100 (5993)	100 (559)	100 (15411)	100 (4483)	100 (601)	100 (16002)	100 (3892)	100 (601)	100 (17672)	100 (1551)	100 (1272)
			2 % (n)	0 (34)	0 (4)	0 (0)	0 (30)	0 (2)	0 (6)	0 (0)	0 (32)	0 (6)	0 (0)	0 (30)	0 (8)	0 (0)	0 (38)	0 (0)	0 (0)
			3 % (n)	0 (10)	0 (1)	0 (0)	0 (7)	0 (0)	0 (4)	0 (0)	0 (9)	0 (2)	0 (0)	0 (9)	0 (2)	0 (0)	0 (10)	0 (1)	0 (0)
			4 % (n)	0 (3)	0 (1)	0 (0)	0 (2)	0 (0)	0 (2)	0 (0)	0 (3)	0 (1)	0 (0)	0 (2)	0 (2)	0 (0)	0 (3)	0 (0)	0 (1)
			5 % (n)	0 (1)	0 (0)	0 (0)	0 (0)	0 (0)	0 (1)	0 (0)	0 (0)	0 (1)	0 (0)	0 (0)	0 (1)	0 (0)	0 (0)	0 (1)	0 (0)
			6 % (n)	0 (2)	0 (0)	0 (0)	0 (2)	0 (0)	0 (0)	0 (0)	0 (1)	0 (1)	0 (0)	0 (1)	0 (1)	0 (0)	0 (1)	0 (1)	0 (0)
		non_nec_surg_abd	1-no NEC/NEC, no surgery % (n)	100 (17586)	100 (2388)	99 (556)	100 (13267)	100 (714)	100 (5993)	99 (556)	100 (15450)	100 (4482)	100 (598)	100 (16035)	100 (3897)	100 (598)	100 (17710)	100 (1550)	100 (1270)
			2-SIP/meconium ileus/volvulus/obstruction % (n)	0 (7)	0 (3)	1 (3)	0 (4)	0 (0)	0 (6)	1 (3)	0 (4)	0 (6)	0 (3)	0 (5)	0 (5)	0 (3)	0 (7)	0 (3)	0 (3)
			3-SIP/meconium ileus/volvulus/obstruction with stomy % (n)	0 (5)	0 (3)	0 (0)	0 (1)	0 (0)	0 (7)	0 (0)	0 (2)	0 (6)	0 (0)	0 (4)	0 (4)	0 (0)	0 (7)	0 (1)	0 (0)
		aki	0 % (n)	100 (17554)	99 (2378)	94 (528)	100 (13252)	100 (711)	99 (5969)	94 (528)	100 (15419)	99 (4471)	95 (570)	100 (16007)	99 (3883)	95 (570)	100 (17676)	100 (1547)	97 (1237)
			2 % (n)	0 (26)	0 (7)	1 (8)	0 (12)	0 (1)	0 (20)	1 (8)	0 (23)	0 (10)	1 (8)	0 (23)	0 (10)	1 (8)	0 (29)	0 (3)	1 (9)
			4 % (n)	0 (11)	0 (3)	1 (5)	0 (4)	0 (2)	0 (8)	1 (5)	0 (8)	0 (6)	1 (5)	0 (6)	0 (8)	1 (5)	0 (10)	0 (3)	0 (6)
			6 % (n)	0 (7)	0 (6)	3 (18)	0 (4)	0 (0)	0 (9)	3 (18)	0 (6)	0 (7)	3 (18)	0 (8)	0 (5)	3 (18)	0 (9)	0 (1)	2 (21)
id	537	total (prevalence)	n (%)	419 (78.03)	57 (10.61)	61 (11.36)	316 (58.85)	17 (3.17)	143 (26.63)	61 (11.36)	368 (68.53)	107 (19.93)	62 (11.55)	382 (71.14)	93 (17.32)	62 (11.55)	422 (78.58)	37 (6.89)	78 (14.53)
		socioeconomic_status	1-highest % (n)	1 (6)	2 (1)	3 (2)	2 (6)	0 (0)	1 (1)	3 (2)	2 (6)	1 (1)	3 (2)	2 (6)	1 (1)	3 (2)	1 (6)	3 (1)	3 (2)
			2-second highest % (n)	21 (89)	32 (18)	18 (11)	20 (64)	29 (5)	27 (38)	18 (11)	21 (76)	29 (31)	18 (11)	22 (84)	25 (23)	18 (11)	22 (94)	27 (10)	18 (14)
			3-medium % (n)	50 (211)	49 (28)	41 (25)	49 (154)	41 (7)	55 (78)	41 (25)	51 (189)	46 (49)	42 (26)	52 (197)	44 (41)	42 (26)	52 (218)	49 (18)	36 (28)
			4-second lowest % (n)	25 (103)	14 (8)	28 (17)	26 (82)	29 (5)	17 (24)	28 (17)	24 (87)	22 (24)	27 (17)	22 (85)	28 (26)	27 (17)	22 (93)	19 (7)	36 (28)
			5-lowest % (n)	2 (10)	4 (2)	10 (6)	3 (10)	0 (0)	1 (2)	10 (6)	3 (10)	2 (2)	10 (6)	3 (10)	2 (2)	10 (6)	3 (11)	3 (1)	8 (6)
		education_status	1-postgraduate % (n)	8 (33)	9 (5)	11 (7)	8 (25)	6 (1)	8 (12)	11 (7)	8 (28)	9 (10)	11 (7)	8 (30)	9 (8)	11 (7)	8 (34)	8 (3)	10 (8)
			2-college % (n)	44 (183)	47 (27)	36 (22)	43 (136)	35 (6)	48 (68)	36 (22)	44 (163)	43 (46)	37 (23)	46 (174)	38 (35)	37 (23)	46 (194)	35 (13)	32 (25)
			3-college, vocational % (n)	12 (51)	11 (6)	13 (8)	13 (41)	6 (1)	10 (15)	13 (8)	11 (41)	15 (16)	13 (8)	12 (46)	12 (11)	13 (8)	12 (50)	16 (6)	12 (9)
			4-high school % (n)	5 (19)	12 (7)	7 (4)	6 (18)	12 (2)	4 (6)	7 (4)	5 (20)	6 (6)	6 (4)	5 (21)	5 (5)	6 (4)	5 (19)	16 (6)	6 (5)
			5-high school, vocational % (n)	25 (105)	16 (9)	23 (14)	24 (76)	35 (6)	22 (32)	23 (14)	24 (89)	23 (25)	23 (14)	23 (88)	28 (26)	23 (14)	23 (97)	22 (8)	29 (23)
			6-junior high school % (n)	6 (24)	5 (3)	8 (5)	5 (17)	6 (1)	6 (9)	8 (5)	6 (23)	4 (4)	8 (5)	5 (20)	8 (7)	8 (5)	6 (25)	3 (1)	8 (6)
			7-elementary school % (n)	1 (4)	0 (0)	2 (1)	1 (3)	0 (0)	1 (1)	2 (1)	1 (4)	0 (0)	2 (1)	1 (3)	1 (1)	2 (1)	1 (3)	0 (0)	3 (2)
		maternal_age	average (SD)	33.14 (5.14)	32.51 (5.41)	31.08 (5.75)	32.8 (5.2)	33.41 (5.35)	33.59 (5.08)	31.08 (5.75)	33.11 (5.17)	32.95 (5.2)	31.05 (5.71)	33.05 (5.09)	33.14 (5.5)	31.05 (5.71)	33.18 (5.18)	32.16 (4.75)	31.29 (5.71)
		ivf	0-no % (n)	77 (323)	65 (37)	82 (50)	77 (244)	59 (10)	74 (106)	82 (50)	76 (281)	73 (78)	82 (51)	75 (288)	76 (71)	82 (51)	76 (319)	73 (27)	82 (64)
			1-yes % (n)	23 (96)	35 (20)	18 (11)	23 (72)	41 (7)	26 (37)	18 (11)	24 (87)	27 (29)	18 (11)	25 (94)	24 (22)	18 (11)	24 (103)	27 (10)	18 (14)
		pe	0-no % (n)	77 (322)	93 (53)	82 (50)	76 (239)	88 (15)	85 (121)	82 (50)	78 (288)	81 (87)	81 (50)	80 (305)	75 (70)	81 (50)	79 (332)	89 (33)	77 (60)
			1-yes % (n)	23 (97)	7 (4)	18 (11)	24 (77)	12 (2)	15 (22)	18 (11)	22 (80)	19 (20)	19 (12)	20 (77)	25 (23)	19 (12)	21 (90)	11 (4)	23 (18)
		gdm	0-no % (n)	95 (399)	96 (55)	93 (57)	94 (298)	100 (17)	97 (139)	93 (57)	95 (350)	96 (103)	94 (58)	95 (364)	96 (89)	94 (58)	95 (403)	92 (34)	95 (74)
			1-yes % (n)	5 (20)	4 (2)	7 (4)	6 (18)	0 (0)	3 (4)	7 (4)	5 (18)	4 (4)	6 (4)	5 (18)	4 (4)	6 (4)	5 (19)	8 (3)	5 (4)
		cs	0-no % (n)	35 (145)	40 (23)	41 (25)	37 (116)	24 (4)	34 (48)	41 (25)	36 (132)	34 (36)	40 (25)	35 (135)	35 (33)	40 (25)	36 (151)	35 (13)	37 (29)
			1-yes % (n)	65 (274)	60 (34)	59 (36)	63 (200)	76 (13)	66 (95)	59 (36)	64 (236)	66 (71)	60 (37)	65 (247)	65 (60)	60 (37)	64 (271)	65 (24)	63 (49)
		gravida	average (SD)	2.4 (1.4)	2.4 (1.49)	2.31 (1.37)	2.27 (1.35)	2.35 (1.41)	2.68 (1.52)	2.31 (1.37)	2.41 (1.44)	2.36 (1.33)	2.31 (1.36)	2.4 (1.4)	2.39 (1.47)	2.31 (1.36)	2.4 (1.44)	2.22 (1.03)	2.41 (1.39)
		bbw_g	average (SD)	1052.57 (275.97)	715.07 (190.74)	682.08 (237.44)	1113.43 (252.36)	962.29 (198.75)	794.28 (249.26)	682.08 (237.44)	1054.99 (277.96)	862.44 (276.28)	691.56 (247.04)	1047.03 (284.5)	866.12 (260.29)	691.56 (247.04)	1033.5 (279.44)	774.62 (244.65)	751.21 (301.4)
		ga_wk	average (SD)	27.75 (1.86)	24.56 (1.64)	24.52 (2.05)	28.11 (1.63)	27.24 (1.75)	25.75 (2.17)	24.52 (2.05)	27.8 (1.94)	25.87 (2)	24.58 (2.08)	27.66 (2)	26.16 (2.13)	24.58 (2.08)	27.53 (2.03)	25.59 (2.23)	25.13 (2.32)
		sex	0-female % (n)	47 (196)	26 (15)	38 (23)	47 (149)	41 (7)	38 (55)	38 (23)	45 (164)	44 (47)	37 (23)	46 (175)	39 (36)	37 (23)	45 (189)	41 (15)	38 (30)
			1-male % (n)	53 (223)	74 (42)	62 (38)	53 (167)	59 (10)	62 (88)	62 (38)	55 (204)	56 (60)	63 (39)	54 (207)	61 (57)	63 (39)	55 (233)	59 (22)	62 (48)
		multiple_gestation	0-no % (n)	70 (295)	63 (36)	67 (41)	72 (227)	47 (8)	67 (96)	67 (41)	72 (264)	62 (66)	68 (42)	70 (268)	67 (62)	68 (42)	70 (295)	68 (25)	67 (52)
			1-yes % (n)	30 (124)	37 (21)	33 (20)	28 (89)	53 (9)	33 (47)	33 (20)	28 (104)	38 (41)	32 (20)	30 (114)	33 (31)	32 (20)	30 (127)	32 (12)	33 (26)
		as1	0 % (n)	19 (80)	42 (24)	74 (45)	16 (49)	41 (7)	34 (48)	74 (45)	18 (67)	34 (36)	74 (46)	20 (75)	30 (28)	74 (46)	21 (87)	27 (10)	67 (52)
			1 % (n)	30 (125)	25 (14)	23 (14)	28 (90)	18 (3)	32 (46)	23 (14)	28 (104)	33 (35)	23 (14)	29 (112)	29 (27)	23 (14)	29 (122)	35 (13)	23 (18)
			2 % (n)	43 (182)	28 (16)	3 (2)	47 (148)	41 (7)	30 (43)	3 (2)	46 (168)	28 (30)	3 (2)	43 (164)	37 (34)	3 (2)	43 (180)	32 (12)	10 (8)
			4 % (n)	8 (32)	5 (3)	0 (0)	9 (29)	0 (0)	4 (6)	0 (0)	8 (29)	6 (6)	0 (0)	8 (31)	4 (4)	0 (0)	8 (33)	5 (2)	0 (0)
		as5	0 % (n)	4 (17)	7 (4)	33 (20)	3 (11)	0 (0)	7 (10)	33 (20)	4 (14)	7 (7)	32 (20)	3 (11)	11 (10)	32 (20)	4 (17)	8 (3)	27 (21)
			1 % (n)	7 (31)	19 (11)	25 (15)	5 (17)	6 (1)	17 (24)	25 (15)	6 (23)	18 (19)	24 (15)	8 (31)	12 (11)	24 (15)	9 (37)	11 (4)	21 (16)
			2 % (n)	27 (115)	40 (23)	31 (19)	24 (77)	41 (7)	38 (54)	31 (19)	27 (98)	36 (39)	32 (20)	28 (106)	33 (31)	32 (20)	28 (120)	27 (10)	35 (27)
			4 % (n)	61 (256)	33 (19)	11 (7)	67 (211)	53 (9)	38 (55)	11 (7)	63 (233)	39 (42)	11 (7)	61 (234)	44 (41)	11 (7)	59 (248)	54 (20)	18 (14)
		resuscitation_at_birth	0 % (n)	89 (371)	70 (40)	38 (23)	90 (284)	94 (16)	78 (111)	38 (23)	88 (323)	81 (87)	39 (24)	89 (340)	75 (70)	39 (24)	87 (367)	81 (30)	47 (37)
			6 % (n)	11 (48)	30 (17)	62 (38)	10 (32)	6 (1)	22 (32)	62 (38)	12 (45)	19 (20)	61 (38)	11 (42)	25 (23)	61 (38)	13 (55)	19 (7)	53 (41)
		birthtime_scoring	1-born 08:00-16:59 % (n)	52 (219)	42 (24)	51 (31)	52 (163)	47 (8)	50 (72)	51 (31)	49 (182)	56 (60)	52 (32)	51 (196)	49 (46)	52 (32)	51 (215)	51 (19)	51 (40)
			2-born 17:00-23:59 % (n)	27 (115)	30 (17)	18 (11)	27 (84)	41 (7)	29 (41)	18 (11)	30 (109)	21 (23)	18 (11)	27 (103)	31 (29)	18 (11)	27 (115)	27 (10)	23 (18)
			3-born 00:00-07:59 % (n)	20 (85)	28 (16)	31 (19)	22 (69)	12 (2)	21 (30)	31 (19)	21 (77)	22 (24)	31 (19)	22 (83)	19 (18)	31 (19)	22 (92)	22 (8)	26 (20)
		steroid_antenatal	0 % (n)	6 (24)	4 (2)	16 (10)	7 (21)	0 (0)	3 (5)	16 (10)	5 (19)	7 (7)	16 (10)	5 (20)	6 (6)	16 (10)	5 (22)	5 (2)	15 (12)
			2 % (n)	28 (118)	25 (14)	36 (22)	29 (92)	29 (5)	24 (35)	36 (22)	26 (95)	34 (36)	37 (23)	28 (106)	27 (25)	37 (23)	27 (116)	27 (10)	36 (28)
			4 % (n)	66 (277)	72 (41)	48 (29)	64 (203)	71 (12)	72 (103)	48 (29)	69 (254)	60 (64)	47 (29)	67 (256)	67 (62)	47 (29)	67 (284)	68 (25)	49 (38)
		chorioamnionitis	0-no % (n)	89 (372)	82 (47)	84 (51)	90 (284)	82 (14)	85 (121)	84 (51)	87 (321)	91 (97)	84 (52)	88 (335)	89 (83)	84 (52)	87 (369)	95 (35)	85 (66)
			1-yes % (n)	11 (47)	18 (10)	16 (10)	10 (32)	18 (3)	15 (22)	16 (10)	13 (47)	9 (10)	16 (10)	12 (47)	11 (10)	16 (10)	13 (53)	5 (2)	15 (12)
		surfactant	0 % (n)	69 (290)	42 (24)	18 (11)	77 (244)	59 (10)	42 (60)	18 (11)	73 (269)	41 (44)	19 (12)	70 (267)	49 (46)	19 (12)	67 (284)	54 (20)	27 (21)
			2 % (n)	31 (129)	58 (33)	82 (50)	23 (72)	41 (7)	58 (83)	82 (50)	27 (99)	59 (63)	81 (50)	30 (115)	51 (47)	81 (50)	33 (138)	46 (17)	73 (57)
		bbw_z	0 % (n)	2 (7)	2 (1)	5 (3)	1 (2)	0 (0)	4 (6)	5 (3)	1 (5)	3 (3)	5 (3)	1 (5)	3 (3)	5 (3)	1 (4)	5 (2)	6 (5)
			2 % (n)	8 (34)	5 (3)	16 (10)	6 (20)	6 (1)	11 (16)	16 (10)	8 (29)	7 (8)	16 (10)	8 (30)	8 (7)	16 (10)	8 (32)	14 (5)	13 (10)
			4 % (n)	90 (378)	93 (53)	79 (48)	93 (294)	94 (16)	85 (121)	79 (48)	91 (334)	90 (96)	79 (49)	91 (347)	89 (83)	79 (49)	91 (386)	81 (30)	81 (63)
		bhc_z	0 % (n)	6 (24)	4 (2)	7 (4)	3 (11)	6 (1)	10 (14)	7 (4)	6 (22)	4 (4)	6 (4)	4 (17)	10 (9)	6 (4)	4 (18)	16 (6)	8 (6)
			2 % (n)	8 (35)	12 (7)	13 (8)	7 (23)	12 (2)	12 (17)	13 (8)	10 (36)	6 (6)	13 (8)	9 (35)	8 (7)	13 (8)	9 (37)	11 (4)	12 (9)
			4 % (n)	86 (360)	84 (48)	80 (49)	89 (282)	82 (14)	78 (112)	80 (49)	84 (310)	91 (97)	81 (50)	86 (330)	83 (77)	81 (50)	87 (367)	73 (27)	81 (63)
		death_age	average (SD)	N/A	N/A	8.79 (13.64)	N/A	N/A	N/A	8.79 (13.64)	N/A	N/A	9.5 (14.61)	N/A	N/A	9.5 (14.61)	N/A	N/A	N/A
	546	total (prevalence)	n (%)	427 (78.21)	58 (10.62)	61 (11.17)	322 (58.97)	17 (3.11)	146 (26.74)	61 (11.17)	375 (68.68)	109 (19.96)	62 (11.36)	389 (71.25)	95 (17.4)	62 (11.36)	429 (78.57)	38 (6.96)	79 (14.47)
		pvl	1-no PVL % (n)	98 (419)	98 (57)	100 (61)	98 (316)	100 (17)	98 (143)	100 (61)	98 (368)	98 (107)	100 (62)	98 (382)	98 (93)	100 (62)	98 (422)	97 (37)	99 (78)
			2-PVL focal, unilateral % (n)	0 (0)	2 (1)	0 (0)	0 (0)	0 (0)	1 (1)	0 (0)	0 (0)	1 (1)	0 (0)	0 (0)	1 (1)	0 (0)	0 (0)	3 (1)	0 (0)
			3-PVL focal, bilateral % (n)	1 (6)	0 (0)	0 (0)	1 (4)	0 (0)	1 (2)	0 (0)	1 (5)	1 (1)	0 (0)	1 (5)	1 (1)	0 (0)	1 (5)	0 (0)	1 (1)
			4-PVL extensive, bilateral % (n)	0 (2)	0 (0)	0 (0)	1 (2)	0 (0)	0 (0)	0 (0)	1 (2)	0 (0)	0 (0)	1 (2)	0 (0)	0 (0)	0 (2)	0 (0)	0 (0)

Feature extraction

Table 13. Processed data old and new categories.

colname	old_cat	new_cat
socioeconomic_status	1-highest	1-high
socioeconomic_status	2-second highest	1-high
socioeconomic_status	3-medium	2-medium
socioeconomic_status	4-second lowest	3-low
socioeconomic_status	5-lowest	3-low
education_status	1-postgraduate	0-high
education_status	2-college	0-high
education_status	3-college, vocational	0-high
education_status	4-high school	1-low
education_status	5-high school, vocational	1-low
education_status	6-junior high school	1-low
education_status	7-elementary school	1-low
ivf	0-no	0-no
ivf	1-yes	1-yes
pe	0-no	0-no
pe	1-yes	1-yes
gdm	0-no	0-no
gdm	1-yes	1-yes
cs	0-no	0-no
cs	1-yes	1-yes
sex	0-female	0-female
sex	1-male	1-male
multiple_gestation	0-no	0-no
multiple_gestation	1-yes	1-yes
birthtime_scoring	1-born 08:00-16:59	birthtime_day
birthtime_scoring	2-born 17:00-23:59	birthtime_evening
birthtime_scoring	3-born 00:00-07:59	birthtime_night
chorioamnionitis	0-no	0-no
chorioamnionitis	1-yes	1-yes
survive	0-no	0-no
survive	1-yes	1-yes
rop_severe	0-none/stage I/stage II	0-none/stage I/stage II
rop_severe	1-stage II+	1-stage II+
rop_severe	NA	NA
bpd_grade	0-no BPD	bpd*
bpd_grade	1-mild BPD	(removed)
bpd_grade	2-moderate/severe BPD	bpd_moderate_severe
bpd_grade	NA	(missing)
eugr_hc	0-HC z-score at birth >=-1.5	0-HC z-score at birth >=-1.5
eugr_hc	1-HC z-score at birth <-1.5	1-HC z-score at birth <-1.5
eugr_hc	NA	NA
eugr_bw	0-BW z-score at birth >=-1.5	0-BW z-score at birth >=-1.5
eugr_bw	1-BW z-score at birth <-1.5	1-BW z-score at birth <-1.5
eugr_bw	NA	NA
hearing	0-passed	0-passed
hearing	1-failed	1-failed
hearing	NA	NA
bbw_z_qw	1-BW z-score >-1	0-BW z-score >-1
bbw_z_qw	2-BW z-score >-2 & <=-1	1-BW z-score <=-1
bbw_z_qw	3-BW z-score >-3 & <=-2	1-BW z-score <=-1
bbw_z_qw	4-BW z-score <=-3	1-BW z-score <=-1
bhc_z_qw	1-HC z-score >-1	0-HC z-score >-1
bhc_z_qw	2-HC z-score >-2 & <=-1	1-HC z-score <=-1
bhc_z_qw	3-HC z-score >-3 & <=-2	1-HC z-score <=-1
bhc_z_qw	4-HC z-score <=-3	1-HC z-score <=-1
resp_supp_raw	1-room air	(removed)
resp_supp_raw	2-nasal canula with oxygen	(removed)
resp_supp_raw	3-CPAP	resp_supp_cpap
resp_supp_raw	4-N-IPPV	resp_supp_nippv
resp_supp_raw	5-IMV	resp_supp_imv
resp_supp_raw	6-IMV+iNO/HFOV/HFOV+iNO	resp_supp_comb
ivh	1-no IVH	0-no IVH
ivh	2-IVH grade I	1-IVH
ivh	3-IVH grade II	1-IVH
ivh	4-IVH grade III	1-IVH
ivh	5-IVH grade IV, unilateral	1-IVH
ivh	6-IVH grade IV, bilateral/IVH grade III with hydrocephalus	1-IVH
pvl	1-no PVL	0-no PVL
pvl	2-PVL focal, unilateral	1-no PVL
pvl	3-PVL focal, bilateral	1-no PVL
pvl	4-PVL extensive, bilateral	1-no PVL
cerebellar_hemorrhage	1-no bleeding	1-no bleeding
cerebellar_hemorrhage	3-severe bleeding	3-severe bleeding
ischaemic_stroke	1-no ischemia	0-no ischemia
ischaemic_stroke	2-ischemia, unilateral	1-ischemia
ischaemic_stroke	3-ischemia, bilateral	1-ischemia
ischaemic_stroke	4-ischemia, multiple	1-ischemia
hs_pda_iv	1-no PDA/PDA, no intervention	(removed)
hs_pda_iv	2-PDA, medical intervention	pda_medical
hs_pda_iv	3-PDA, surgical intervention	pda_surgical
non_nec_surg_abd	1-no NEC/NEC, no surgery	0-no NEC/NEC, no surgery
non_nec_surg_abd	2-SIP/meconium ileus/volvulus/obstruction	1-NEC with surgery
non_nec_surg_abd	3-SIP/meconium ileus/volvulus/obstruction with stomy	1-NEC with surgery
Note:
*, inversed nominal category.

Univariate regression analysis

Table 14. Univariate regression analysis.

outcome	variable	term	OR	LB	UB	p.value
survive	resp_supp_cpap*	1-yes	1.380000e+00	1.339	1.422	<0.001
survive	resp_supp_imv*	1-yes	1.299000e+00	1.240	1.361	<0.001
survive	resp_supp_agg_cum_day_qw*	value	9.800000e-01	0.978	0.982	<0.001
survive	fio2_cum_day_qw*	value	9.730000e-01	0.972	0.975	<0.001
survive	fio2_cum_level_qw*	value	9.990000e-01	0.999	0.999	<0.001
survive	fio2_cum_level_pct*	value	9.980000e-01	0.998	0.999	<0.001
survive	bbw_g*	value	1.005000e+00	1.004	1.006	<0.001
survive	ga_wk*	value	1.740000e+00	1.518	1.995	<0.001
survive	as1*	value	5.449000e+00	3.453	8.600	<0.001
survive	as5*	value	2.507000e+00	1.996	3.149	<0.001
survive	resuscitation_at_birth*	value	6.860000e-01	0.626	0.753	<0.001
survive	steroid_antenatal*	value	1.416000e+00	1.177	1.704	<0.001
survive	surfactant*	value	3.490000e-01	0.254	0.480	<0.001
survive	bbw_z*	value	1.566000e+00	1.223	2.005	<0.001
survive	bbw_z_qw*	1-BW z-score <=-1	7.270000e-01	0.707	0.748	<0.001
survive	bhc_z_qw*	1-HC z-score <=-1	6.340000e-01	0.616	0.652	<0.001
survive	inotropic*	value	1.233000e+00	1.214	1.252	<0.001
survive	blood_volume*	value	1.270000e+00	1.242	1.299	<0.001
survive	blood_culture*	value	1.100000e+00	1.076	1.125	<0.001
survive	plt*	value	1.066000e+00	1.046	1.087	<0.001
survive	wbc*	value	1.103000e+00	1.067	1.140	<0.001
survive	feeding*	value	8.200000e-01	0.815	0.825	<0.001
survive	ivh*	1-IVH	8.900000e+00	7.429	10.664	<0.001
survive	pda_medical*	1-yes	3.039000e+00	2.770	3.334	<0.001
survive	steroid_postnatal*	value	8.590000e-01	0.811	0.910	0.001
survive	maternal_age*	value	1.062000e+00	1.013	1.114	0.013
survive	aki*	value	1.105000e+00	1.036	1.178	0.02
survive	fio2_raw*	value	9.960000e-01	0.995	0.998	0.024
survive	resp_supp_comb	1-yes	1.368000e+00	1.242	1.508	0.054
survive	bhc_z	value	1.209000e+00	0.982	1.488	0.074
survive	socioeconomic_status	3-low	5.260000e-01	0.258	1.074	0.078
survive	birthtime_evening	1-yes	1.771000e+00	0.919	3.414	0.088
survive	fio2_cum_day_pct	value	9.990000e-01	0.999	1.000	0.108
survive	birthtime_night	1-yes	6.350000e-01	0.360	1.121	0.117
survive	resp_supp_agg_cum_day_pct	value	9.990000e-01	0.999	1.000	0.154
survive	ivf	1-yes	1.485000e+00	0.768	2.869	0.24
survive	resp_supp_nippv	1-yes	9.360000e-01	0.890	0.985	0.284
survive	non_nec_surg_abd	1-NEC with surgery	1.273000e+00	0.802	2.020	0.306
survive	education_status	1-low	7.680000e-01	0.456	1.292	0.32
survive	transfusion	value	9.860000e-01	0.956	1.017	0.345
survive	cs	1-yes	1.236000e+00	0.732	2.087	0.427
survive	chorioamnionitis	1-yes	7.870000e-01	0.380	1.627	0.518
survive	sex	1-male	8.580000e-01	0.509	1.444	0.563
survive	gdm	1-yes	7.730000e-01	0.258	2.318	0.646
survive	multiple_gestation	1-yes	8.940000e-01	0.518	1.545	0.689
survive	gravida	value	1.036000e+00	0.859	1.248	0.713
survive	pe	1-yes	9.020000e-01	0.487	1.670	0.742
survive	cerebellar_hemorrhage	3-severe bleeding	7.290000e-01	0.103	5.176	0.782
survive	pda_surgical	1-yes	1.029000e+00	0.788	1.345	0.784
survive	birthtime_day	1-yes	9.460000e-01	0.567	1.579	0.832
survive	ischaemic_stroke	1-ischemia	1.063000e+00	0.442	2.553	0.871
survive	socioeconomic_status	2-medium	9.610000e-01	0.480	1.925	0.911
survive	nec	value	1.003000e+00	0.910	1.105	0.934
survive	pvl	1-no PVL	2.231151e+06	0.000	Inf	0.985
rop_severe	resp_supp_cpap*	1-yes	3.290000e-01	0.303	0.358	<0.001
rop_severe	resp_supp_nippv*	1-yes	3.514000e+00	3.200	3.858	<0.001
rop_severe	resp_supp_imv*	1-yes	6.826000e+00	6.272	7.428	<0.001
rop_severe	resp_supp_comb*	1-yes	4.035000e+00	3.374	4.824	<0.001
rop_severe	fio2_raw*	value	1.043000e+00	1.041	1.045	<0.001
rop_severe	resp_supp_agg_cum_day_qw*	value	1.055000e+00	1.052	1.058	<0.001
rop_severe	fio2_cum_day_qw*	value	1.029000e+00	1.026	1.031	<0.001
rop_severe	fio2_cum_level_qw*	value	1.001000e+00	1.001	1.001	<0.001
rop_severe	steroid_postnatal*	value	1.900000e+00	1.754	2.058	<0.001
rop_severe	bbw_g*	value	9.940000e-01	0.993	0.996	<0.001
rop_severe	ga_wk*	value	4.360000e-01	0.359	0.528	<0.001
rop_severe	as5*	value	6.590000e-01	0.536	0.811	<0.001
rop_severe	resuscitation_at_birth*	value	1.219000e+00	1.095	1.357	<0.001
rop_severe	surfactant*	value	1.758000e+00	1.325	2.332	<0.001
rop_severe	inotropic*	value	1.627000e+00	1.585	1.670	<0.001
rop_severe	blood_volume*	value	1.647000e+00	1.580	1.717	<0.001
rop_severe	transfusion*	value	1.577000e+00	1.484	1.676	<0.001
rop_severe	blood_culture*	value	1.362000e+00	1.307	1.418	<0.001
rop_severe	plt*	value	1.345000e+00	1.294	1.397	<0.001
rop_severe	feeding*	value	6.300000e-01	0.618	0.642	<0.001
rop_severe	ivh*	1-IVH	2.028100e+01	14.038	29.301	<0.001
rop_severe	cerebellar_hemorrhage	3-severe bleeding	0.000000e+00	0.000	Inf	<0.001
rop_severe	pda_medical*	1-yes	5.085000e+00	4.122	6.273	<0.001
rop_severe	aki*	value	1.455000e+00	1.304	1.623	<0.001
rop_severe	wbc*	value	1.197000e+00	1.099	1.302	0.001
rop_severe	pda_surgical*	1-yes	2.286000e+00	1.352	3.866	0.001
rop_severe	non_nec_surg_abd*	1-NEC with surgery	3.913000e+00	1.756	8.719	0.001
rop_severe	as1*	value	6.310000e-01	0.468	0.851	0.003
rop_severe	sex*	1-male	2.461000e+00	1.324	4.575	0.004
rop_severe	pe*	1-yes	2.510000e-01	0.088	0.710	0.009
rop_severe	bhc_z_qw*	1-HC z-score <=-1	1.620000e+00	1.473	1.781	0.011
rop_severe	ivf*	1-yes	1.819000e+00	1.008	3.280	0.047
rop_severe	socioeconomic_status*	3-low	4.420000e-01	0.196	0.998	0.049
rop_severe	bbw_z_qw	1-BW z-score <=-1	1.354000e+00	1.248	1.469	0.142
rop_severe	birthtime_day	1-yes	6.640000e-01	0.380	1.162	0.152
rop_severe	chorioamnionitis	1-yes	1.684000e+00	0.798	3.554	0.171
rop_severe	birthtime_night	1-yes	1.533000e+00	0.821	2.864	0.18
rop_severe	resp_supp_agg_cum_day_pct	value	1.007000e+00	1.005	1.008	0.189
rop_severe	socioeconomic_status	2-medium	6.640000e-01	0.353	1.247	0.203
rop_severe	multiple_gestation	1-yes	1.388000e+00	0.779	2.473	0.266
rop_severe	steroid_antenatal	value	1.133000e+00	0.879	1.460	0.335
rop_severe	maternal_age	value	9.770000e-01	0.926	1.030	0.388
rop_severe	cs	1-yes	7.820000e-01	0.444	1.378	0.395
rop_severe	fio2_cum_day_pct	value	1.003000e+00	1.002	1.005	0.437
rop_severe	ischaemic_stroke	1-ischemia	1.825000e+00	0.257	12.963	0.581
rop_severe	bbw_z	value	1.119000e+00	0.732	1.713	0.603
rop_severe	education_status	1-low	8.780000e-01	0.489	1.577	0.664
rop_severe	gdm	1-yes	7.250000e-01	0.165	3.188	0.671
rop_severe	nec	value	9.480000e-01	0.700	1.284	0.687
rop_severe	birthtime_evening	1-yes	1.123000e+00	0.612	2.061	0.707
rop_severe	pvl	1-no PVL	9.190000e-01	0.113	7.482	0.937
rop_severe	bhc_z	value	1.010000e+00	0.771	1.323	0.944
rop_severe	gravida	value	1.004000e+00	0.825	1.221	0.971
rop_severe	fio2_cum_level_pct	value	1.000000e+00	0.999	1.001	0.984
bpd	fio2_cum_level_qw*	value	1.007000e+00	1.005	1.008	<0.001
bpd	fio2_cum_level_pct*	value	1.009000e+00	1.005	1.013	<0.001
bpd	bbw_g*	value	9.960000e-01	0.995	0.997	<0.001
bpd	fio2_raw*	value	1.027000e+00	1.010	1.045	0.002
bpd	resp_supp_agg_cum_day_qw*	value	1.082000e+00	1.024	1.143	0.005
bpd	fio2_cum_day_pct	value	1.004000e+00	1.000	1.009	0.074
bpd	ga_wk	value	8.350000e-01	0.542	1.287	0.415
bpd	maternal_age	value	1.018000e+00	0.955	1.085	0.583
bpd	fio2_cum_day_qw	value	1.007000e+00	0.972	1.043	0.713
bpd	resp_supp_agg_cum_day_pct	value	9.990000e-01	0.994	1.005	0.824
bpd	nec	value	9.440000e-01	0.485	1.837	0.866
bpd	cerebellar_hemorrhage	3-severe bleeding	3.143660e+08	0.000	Inf	0.999
bpd	resp_supp_cpap	1-yes	1.000000e+00	0.020	50.397	1
bpd	resp_supp_nippv	1-yes	1.000000e+00	0.020	50.397	1
bpd	resp_supp_imv	1-yes	1.000000e+00	0.020	50.397	1
bpd	resp_supp_comb	1-yes	1.000000e+00	0.020	50.397	1
bpd	steroid_postnatal	value	1.000000e+00	0.141	7.099	1
bpd	socioeconomic_status	2-medium	1.000000e+00	0.020	50.397	1
bpd	socioeconomic_status	3-low	1.000000e+00	0.020	50.397	1
bpd	education_status	1-low	1.000000e+00	0.020	50.397	1
bpd	ivf	1-yes	1.000000e+00	0.020	50.397	1
bpd	pe	1-yes	1.000000e+00	0.020	50.397	1
bpd	gdm	1-yes	1.000000e+00	0.020	50.397	1
bpd	cs	1-yes	1.000000e+00	0.020	50.397	1
bpd	gravida	value	1.000000e+00	0.592	1.688	1
bpd	sex	1-male	1.000000e+00	0.020	50.397	1
bpd	multiple_gestation	1-yes	1.000000e+00	0.020	50.397	1
bpd	as1	value	1.000000e+00	0.392	2.552	1
bpd	as5	value	1.000000e+00	0.392	2.552	1
bpd	resuscitation_at_birth	value	1.000000e+00	0.520	1.922	1
bpd	birthtime_day	1-yes	1.000000e+00	0.020	50.397	1
bpd	birthtime_evening	1-yes	1.000000e+00	0.020	50.397	1
bpd	birthtime_night	1-yes	1.000000e+00	0.020	50.397	1
bpd	steroid_antenatal	value	1.000000e+00	0.375	2.664	1
bpd	chorioamnionitis	1-yes	1.000000e+00	0.020	50.397	1
bpd	surfactant	value	1.000000e+00	0.141	7.099	1
bpd	bbw_z	value	1.000000e+00	0.375	2.664	1
bpd	bhc_z	value	1.000000e+00	0.375	2.664	1
bpd	bbw_z_qw	1-BW z-score <=-1	1.000000e+00	0.020	50.397	1
bpd	bhc_z_qw	1-HC z-score <=-1	1.000000e+00	0.020	50.397	1
bpd	inotropic	value	1.000000e+00	0.538	1.859	1
bpd	blood_volume	value	1.000000e+00	0.526	1.899	1
bpd	transfusion	value	1.000000e+00	0.141	7.099	1
bpd	blood_culture	value	1.000000e+00	0.526	1.899	1
bpd	plt	value	1.000000e+00	0.562	1.778	1
bpd	wbc	value	1.000000e+00	0.375	2.664	1
bpd	feeding	value	1.000000e+00	0.592	1.688	1
bpd	ivh	1-IVH	1.000000e+00	0.020	50.397	1
bpd	pvl	1-no PVL	1.000000e+00	0.020	50.397	1
bpd	ischaemic_stroke	1-ischemia	1.000000e+00	0.020	50.397	1
bpd	pda_medical	1-yes	1.000000e+00	0.020	50.397	1
bpd	pda_surgical	1-yes	1.000000e+00	0.020	50.397	1
bpd	non_nec_surg_abd	1-NEC with surgery	1.000000e+00	0.020	50.397	1
bpd	aki	value	1.000000e+00	0.538	1.859	1
bpd_moderate_severe	fio2_cum_level_qw*	value	1.005000e+00	1.004	1.007	<0.001
bpd_moderate_severe	fio2_cum_level_pct*	value	1.008000e+00	1.004	1.012	<0.001
bpd_moderate_severe	bbw_g*	value	9.960000e-01	0.994	0.997	<0.001
bpd_moderate_severe	fio2_raw*	value	1.024000e+00	1.008	1.041	0.004
bpd_moderate_severe	resp_supp_agg_cum_day_qw*	value	1.074000e+00	1.020	1.132	0.007
bpd_moderate_severe	fio2_cum_day_pct	value	1.002000e+00	0.998	1.007	0.327
bpd_moderate_severe	ga_wk	value	8.350000e-01	0.542	1.287	0.415
bpd_moderate_severe	resp_supp_agg_cum_day_pct	value	9.980000e-01	0.992	1.003	0.441
bpd_moderate_severe	maternal_age	value	1.018000e+00	0.955	1.085	0.583
bpd_moderate_severe	fio2_cum_day_qw	value	1.003000e+00	0.969	1.038	0.865
bpd_moderate_severe	nec	value	9.440000e-01	0.485	1.837	0.866
bpd_moderate_severe	cerebellar_hemorrhage	3-severe bleeding	3.143660e+08	0.000	Inf	0.999
bpd_moderate_severe	resp_supp_cpap	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	resp_supp_nippv	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	resp_supp_imv	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	resp_supp_comb	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	steroid_postnatal	value	1.000000e+00	0.141	7.099	1
bpd_moderate_severe	socioeconomic_status	2-medium	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	socioeconomic_status	3-low	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	education_status	1-low	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	ivf	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	pe	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	gdm	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	cs	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	gravida	value	1.000000e+00	0.592	1.688	1
bpd_moderate_severe	sex	1-male	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	multiple_gestation	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	as1	value	1.000000e+00	0.392	2.552	1
bpd_moderate_severe	as5	value	1.000000e+00	0.392	2.552	1
bpd_moderate_severe	resuscitation_at_birth	value	1.000000e+00	0.520	1.922	1
bpd_moderate_severe	birthtime_day	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	birthtime_evening	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	birthtime_night	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	steroid_antenatal	value	1.000000e+00	0.375	2.664	1
bpd_moderate_severe	chorioamnionitis	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	surfactant	value	1.000000e+00	0.141	7.099	1
bpd_moderate_severe	bbw_z	value	1.000000e+00	0.375	2.664	1
bpd_moderate_severe	bhc_z	value	1.000000e+00	0.375	2.664	1
bpd_moderate_severe	bbw_z_qw	1-BW z-score <=-1	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	bhc_z_qw	1-HC z-score <=-1	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	inotropic	value	1.000000e+00	0.538	1.859	1
bpd_moderate_severe	blood_volume	value	1.000000e+00	0.526	1.899	1
bpd_moderate_severe	transfusion	value	1.000000e+00	0.141	7.099	1
bpd_moderate_severe	blood_culture	value	1.000000e+00	0.526	1.899	1
bpd_moderate_severe	plt	value	1.000000e+00	0.562	1.778	1
bpd_moderate_severe	wbc	value	1.000000e+00	0.375	2.664	1
bpd_moderate_severe	feeding	value	1.000000e+00	0.592	1.688	1
bpd_moderate_severe	ivh	1-IVH	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	pvl	1-no PVL	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	ischaemic_stroke	1-ischemia	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	pda_medical	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	pda_surgical	1-yes	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	non_nec_surg_abd	1-NEC with surgery	1.000000e+00	0.020	50.397	1
bpd_moderate_severe	aki	value	1.000000e+00	0.538	1.859	1
eugr_hc	resp_supp_cpap*	1-yes	5.840000e-01	0.550	0.619	<0.001
eugr_hc	resp_supp_nippv*	1-yes	2.525000e+00	2.342	2.723	<0.001
eugr_hc	resp_supp_imv*	1-yes	3.916000e+00	3.654	4.198	<0.001
eugr_hc	resp_supp_comb*	1-yes	4.743000e+00	4.196	5.360	<0.001
eugr_hc	fio2_raw*	value	1.035000e+00	1.033	1.036	<0.001
eugr_hc	resp_supp_agg_cum_day_qw*	value	1.035000e+00	1.033	1.038	<0.001
eugr_hc	fio2_cum_level_qw*	value	1.001000e+00	1.001	1.001	<0.001
eugr_hc	bbw_g*	value	9.970000e-01	0.997	0.998	<0.001
eugr_hc	ga_wk*	value	6.400000e-01	0.571	0.717	<0.001
eugr_hc	as5*	value	6.820000e-01	0.578	0.804	<0.001
eugr_hc	surfactant*	value	1.972000e+00	1.576	2.469	<0.001
eugr_hc	inotropic*	value	1.587000e+00	1.555	1.620	<0.001
eugr_hc	blood_volume*	value	1.612000e+00	1.562	1.664	<0.001
eugr_hc	transfusion*	value	1.365000e+00	1.299	1.434	<0.001
eugr_hc	blood_culture*	value	1.336000e+00	1.295	1.379	<0.001
eugr_hc	plt*	value	1.398000e+00	1.361	1.435	<0.001
eugr_hc	wbc*	value	1.155000e+00	1.082	1.233	<0.001
eugr_hc	feeding*	value	6.750000e-01	0.666	0.684	<0.001
eugr_hc	ivh*	1-IVH	1.514700e+01	11.159	20.560	<0.001
eugr_hc	cerebellar_hemorrhage*	3-severe bleeding	3.194800e+01	4.493	227.164	<0.001
eugr_hc	pda_medical*	1-yes	4.353000e+00	3.692	5.132	<0.001
eugr_hc	non_nec_surg_abd*	1-NEC with surgery	4.270000e+00	2.423	7.525	<0.001
eugr_hc	aki*	value	1.366000e+00	1.243	1.501	<0.001
eugr_hc	resp_supp_agg_cum_day_pct*	value	1.011000e+00	1.010	1.012	0.001
eugr_hc	as1*	value	6.770000e-01	0.540	0.848	0.001
eugr_hc	fio2_cum_day_qw*	value	1.012000e+00	1.010	1.014	0.003
eugr_hc	ischaemic_stroke*	1-ischemia	4.926000e+00	2.049	11.843	0.003
eugr_hc	pda_surgical*	1-yes	1.733000e+00	1.117	2.689	0.006
eugr_hc	steroid_postnatal*	value	1.265000e+00	1.163	1.376	0.015
eugr_hc	fio2_cum_level_pct*	value	1.007000e+00	1.006	1.008	0.018
eugr_hc	fio2_cum_day_pct*	value	1.007000e+00	1.006	1.008	0.023
eugr_hc	multiple_gestation*	1-yes	1.577000e+00	1.005	2.476	0.048
eugr_hc	resuscitation_at_birth	value	1.087000e+00	0.987	1.197	0.089
eugr_hc	birthtime_evening	1-yes	6.510000e-01	0.390	1.086	0.1
eugr_hc	steroid_antenatal	value	8.650000e-01	0.726	1.030	0.103
eugr_hc	socioeconomic_status	2-medium	6.640000e-01	0.397	1.112	0.12
eugr_hc	bhc_z	value	1.207000e+00	0.944	1.543	0.133
eugr_hc	socioeconomic_status	3-low	6.870000e-01	0.379	1.246	0.216
eugr_hc	birthtime_day	1-yes	1.305000e+00	0.846	2.012	0.229
eugr_hc	chorioamnionitis	1-yes	7.040000e-01	0.343	1.446	0.339
eugr_hc	bhc_z_qw	1-HC z-score <=-1	8.990000e-01	0.846	0.956	0.39
eugr_hc	education_status	1-low	8.290000e-01	0.526	1.308	0.421
eugr_hc	ivf	1-yes	1.201000e+00	0.736	1.959	0.464
eugr_hc	pe	1-yes	8.280000e-01	0.480	1.428	0.497
eugr_hc	bbw_z	value	9.150000e-01	0.692	1.211	0.536
eugr_hc	bbw_z_qw	1-BW z-score <=-1	9.230000e-01	0.870	0.978	0.58
eugr_hc	gdm	1-yes	7.550000e-01	0.250	2.281	0.618
eugr_hc	cs	1-yes	1.103000e+00	0.701	1.737	0.672
eugr_hc	gravida	value	9.720000e-01	0.833	1.135	0.722
eugr_hc	birthtime_night	1-yes	1.093000e+00	0.650	1.836	0.738
eugr_hc	maternal_age	value	9.940000e-01	0.954	1.037	0.788
eugr_hc	sex	1-male	1.026000e+00	0.665	1.583	0.907
eugr_hc	nec	value	1.003000e+00	0.819	1.228	0.975
eugr_hc	pvl	1-no PVL	9.830000e-01	0.201	4.800	0.983
eugr_bw	resp_supp_nippv*	1-yes	2.687000e+00	2.482	2.909	<0.001
eugr_bw	resp_supp_imv*	1-yes	3.218000e+00	2.976	3.480	<0.001
eugr_bw	resp_supp_comb*	1-yes	4.037000e+00	3.508	4.644	<0.001
eugr_bw	fio2_raw*	value	1.027000e+00	1.025	1.030	<0.001
eugr_bw	resp_supp_agg_cum_day_qw*	value	1.027000e+00	1.024	1.030	<0.001
eugr_bw	bbw_g*	value	9.980000e-01	0.997	0.999	<0.001
eugr_bw	ga_wk*	value	7.190000e-01	0.644	0.802	<0.001
eugr_bw	as5*	value	7.300000e-01	0.615	0.867	<0.001
eugr_bw	surfactant*	value	1.540000e+00	1.223	1.940	<0.001
eugr_bw	inotropic*	value	1.548000e+00	1.513	1.584	<0.001
eugr_bw	blood_volume*	value	1.636000e+00	1.583	1.691	<0.001
eugr_bw	transfusion*	value	1.331000e+00	1.261	1.405	<0.001
eugr_bw	blood_culture*	value	1.309000e+00	1.264	1.356	<0.001
eugr_bw	plt*	value	1.392000e+00	1.353	1.432	<0.001
eugr_bw	wbc*	value	1.239000e+00	1.163	1.319	<0.001
eugr_bw	feeding*	value	6.460000e-01	0.637	0.656	<0.001
eugr_bw	ivh*	1-IVH	1.114400e+01	7.672	16.185	<0.001
eugr_bw	cerebellar_hemorrhage*	3-severe bleeding	3.677600e+01	5.171	261.548	<0.001
eugr_bw	pda_medical*	1-yes	4.332000e+00	3.630	5.170	<0.001
eugr_bw	non_nec_surg_abd*	1-NEC with surgery	3.651000e+00	1.898	7.022	<0.001
eugr_bw	aki*	value	1.392000e+00	1.265	1.532	<0.001
eugr_bw	resp_supp_cpap*	1-yes	6.430000e-01	0.603	0.684	0.001
eugr_bw	resuscitation_at_birth*	value	1.177000e+00	1.070	1.294	0.001
eugr_bw	resp_supp_agg_cum_day_pct*	value	1.011000e+00	1.010	1.012	0.003
eugr_bw	pda_surgical*	1-yes	1.797000e+00	1.131	2.856	0.005
eugr_bw	fio2_cum_level_qw*	value	1.001000e+00	1.000	1.001	0.012
eugr_bw	fio2_cum_level_pct*	value	1.007000e+00	1.006	1.008	0.017
eugr_bw	as1*	value	7.640000e-01	0.608	0.961	0.022
eugr_bw	fio2_cum_day_pct	value	1.006000e+00	1.005	1.007	0.058
eugr_bw	nec	value	1.136000e+00	0.952	1.356	0.062
eugr_bw	bhc_z	value	8.630000e-01	0.708	1.052	0.144
eugr_bw	fio2_cum_day_qw	value	1.006000e+00	1.004	1.009	0.155
eugr_bw	bhc_z_qw	1-HC z-score <=-1	1.200000e+00	1.120	1.287	0.17
eugr_bw	education_status	1-low	1.368000e+00	0.861	2.173	0.185
eugr_bw	sex	1-male	1.339000e+00	0.842	2.127	0.217
eugr_bw	steroid_postnatal	value	1.166000e+00	1.058	1.285	0.222
eugr_bw	pe	1-yes	1.301000e+00	0.764	2.218	0.333
eugr_bw	socioeconomic_status	2-medium	7.800000e-01	0.445	1.369	0.387
eugr_bw	bbw_z	value	8.860000e-01	0.665	1.180	0.407
eugr_bw	birthtime_evening	1-yes	1.227000e+00	0.749	2.011	0.416
eugr_bw	multiple_gestation	1-yes	1.175000e+00	0.725	1.907	0.512
eugr_bw	birthtime_night	1-yes	8.650000e-01	0.489	1.527	0.616
eugr_bw	bbw_z_qw	1-BW z-score <=-1	1.074000e+00	1.009	1.144	0.643
eugr_bw	chorioamnionitis	1-yes	8.590000e-01	0.416	1.771	0.68
eugr_bw	birthtime_day	1-yes	9.290000e-01	0.590	1.461	0.749
eugr_bw	socioeconomic_status	3-low	1.105000e+00	0.597	2.048	0.75
eugr_bw	steroid_antenatal	value	9.780000e-01	0.808	1.183	0.818
eugr_bw	pvl	1-no PVL	1.174000e+00	0.240	5.742	0.843
eugr_bw	ivf	1-yes	9.490000e-01	0.558	1.616	0.848
eugr_bw	gdm	1-yes	9.090000e-01	0.300	2.752	0.866
eugr_bw	maternal_age	value	1.003000e+00	0.960	1.048	0.887
eugr_bw	ischaemic_stroke	1-ischemia	1.116000e+00	0.157	7.927	0.911
eugr_bw	gravida	value	9.930000e-01	0.845	1.167	0.934
eugr_bw	cs	1-yes	9.940000e-01	0.619	1.596	0.979
hearing	resp_supp_nippv*	1-yes	3.798000e+00	3.385	4.261	<0.001
hearing	resp_supp_imv*	1-yes	4.138000e+00	3.688	4.643	<0.001
hearing	fio2_raw*	value	1.031000e+00	1.028	1.035	<0.001
hearing	resp_supp_agg_cum_day_qw*	value	1.035000e+00	1.030	1.039	<0.001
hearing	bbw_g*	value	9.960000e-01	0.995	0.998	<0.001
hearing	ga_wk*	value	6.670000e-01	0.568	0.782	<0.001
hearing	inotropic*	value	1.540000e+00	1.485	1.597	<0.001
hearing	blood_volume*	value	1.569000e+00	1.483	1.660	<0.001
hearing	transfusion*	value	1.481000e+00	1.368	1.604	<0.001
hearing	blood_culture*	value	1.403000e+00	1.339	1.471	<0.001
hearing	plt*	value	1.484000e+00	1.424	1.547	<0.001
hearing	wbc*	value	1.225000e+00	1.106	1.356	<0.001
hearing	feeding*	value	6.270000e-01	0.612	0.642	<0.001
hearing	ivh*	1-IVH	1.425000e+01	8.448	24.038	<0.001
hearing	cerebellar_hemorrhage	3-severe bleeding	0.000000e+00	0.000	Inf	<0.001
hearing	pda_medical*	1-yes	6.151000e+00	4.836	7.823	<0.001
hearing	resp_supp_cpap*	1-yes	4.740000e-01	0.429	0.525	0.001
hearing	bhc_z*	value	7.050000e-01	0.553	0.899	0.005
hearing	non_nec_surg_abd*	1-NEC with surgery	3.863000e+00	1.448	10.308	0.006
hearing	aki*	value	1.334000e+00	1.114	1.598	0.009
hearing	bbw_z*	value	6.610000e-01	0.468	0.932	0.018
hearing	bhc_z_qw*	1-HC z-score <=-1	1.667000e+00	1.480	1.877	0.021
hearing	pda_surgical	1-yes	1.949000e+00	0.973	3.905	0.031
hearing	resp_supp_comb*	1-yes	2.460000e+00	1.839	3.291	0.033
hearing	fio2_cum_day_qw*	value	1.014000e+00	1.010	1.017	0.047
hearing	fio2_cum_level_qw	value	1.001000e+00	1.000	1.001	0.061
hearing	bbw_z_qw	1-BW z-score <=-1	1.672000e+00	1.509	1.853	0.072
hearing	surfactant	value	1.323000e+00	0.942	1.856	0.106
hearing	pe	1-yes	4.470000e-01	0.154	1.295	0.138
hearing	resp_supp_agg_cum_day_pct	value	1.010000e+00	1.008	1.012	0.152
hearing	as1	value	7.980000e-01	0.569	1.119	0.19
hearing	chorioamnionitis	1-yes	3.980000e-01	0.093	1.701	0.214
hearing	ischaemic_stroke	1-ischemia	3.545000e+00	0.499	25.184	0.244
hearing	maternal_age	value	9.630000e-01	0.903	1.027	0.248
hearing	resuscitation_at_birth	value	1.077000e+00	0.931	1.245	0.319
hearing	gdm	1-yes	1.872000e+00	0.527	6.644	0.332
hearing	as5	value	8.900000e-01	0.690	1.148	0.369
hearing	fio2_cum_day_pct	value	1.004000e+00	1.002	1.006	0.399
hearing	steroid_postnatal	value	1.163000e+00	0.998	1.356	0.399
hearing	education_status	1-low	1.316000e+00	0.663	2.615	0.433
hearing	gravida	value	9.060000e-01	0.701	1.171	0.452
hearing	socioeconomic_status	3-low	6.990000e-01	0.270	1.810	0.461
hearing	socioeconomic_status	2-medium	7.510000e-01	0.342	1.648	0.475
hearing	sex	1-male	1.190000e+00	0.600	2.357	0.619
hearing	nec	value	1.095000e+00	0.803	1.493	0.629
hearing	fio2_cum_level_pct	value	9.980000e-01	0.996	1.000	0.645
hearing	pvl	1-no PVL	1.629000e+00	0.195	13.602	0.652
hearing	ivf	1-yes	1.147000e+00	0.537	2.450	0.723
hearing	multiple_gestation	1-yes	1.115000e+00	0.543	2.288	0.767
hearing	cs	1-yes	1.029000e+00	0.509	2.079	0.937
hearing	birthtime_day	1-yes	1.016000e+00	0.519	1.991	0.962
hearing	birthtime_evening	1-yes	9.890000e-01	0.464	2.107	0.977
hearing	birthtime_night	1-yes	9.900000e-01	0.438	2.238	0.98
hearing	steroid_antenatal	value	1.001000e+00	0.750	1.336	0.994
Note:
*, either LB > 1 or UB < 1 and p-value <= 0.05.

Covariate selection

Multivariate regression analysis

Table 15. Multivariate regression analysis.

outcome	variable	term	OR	LB	UB	p.value	covariates
survive	ivh*	1-IVH	5.552	4.630	6.658	<0.001	NA
survive	fio2_cum_day_qw*	value	0.977	0.975	0.978	<0.001	NA
survive	feeding*	value	0.820	0.815	0.825	<0.001	NA
survive	bhc_z_qw*	1-HC z-score <=-1	0.817	0.791	0.845	<0.001	NA
survive	pda_medical*	1-yes	2.135	1.944	2.344	<0.001	NA
survive	resp_supp_agg_cum_day_qw*	value	0.987	0.985	0.989	<0.001	NA
survive	bbw_z_qw*	1-BW z-score <=-1	0.862	0.835	0.890	<0.001	NA
survive	fio2_cum_level_qw*	value	0.999	0.999	0.999	<0.001	NA
survive	resp_supp_cpap*	1-yes	1.252	1.214	1.291	<0.001	NA
survive	ga_wk*	value	1.216	1.197	1.234	<0.001	NA
survive	bbw_g*	value	1.001	1.001	1.001	<0.001	NA
survive	wbc*	value	1.103	1.067	1.140	<0.001	NA
survive	fio2_cum_level_pct*	value	0.998	0.998	0.999	<0.001	NA
survive	surfactant*	value	0.928	0.913	0.943	0.004	NA
survive	blood_volume*	value	1.072	1.047	1.099	0.009	NA
survive	steroid_antenatal*	value	1.044	1.032	1.057	0.015	NA
survive	aki*	value	1.105	1.036	1.178	0.02	NA
survive	fio2_raw*	value	0.996	0.995	0.998	0.024	NA
survive	blood_culture*	value	1.041	1.017	1.065	0.025	NA
survive	bbw_z*	value	1.083	1.061	1.107	0.029	NA
survive	inotropic*	value	1.056	1.038	1.074	0.041	NA
survive	plt	value	1.035	1.015	1.056	0.051	inotropic
survive	steroid_postnatal	value	0.921	0.869	0.975	0.087	bhc_z_qw
survive	resp_supp_imv	1-yes	1.102	1.049	1.158	0.1	blood_volume, inotropic
survive	resuscitation_at_birth	value	0.991	0.982	0.999	0.548	ivh, feeding, pda_medical, bbw_z_qw, blood_volume, inotropic, resp_supp_cpap, ga_wk, as5, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
survive	maternal_age	value	0.999	0.997	1.002	0.622
survive	as5	value	1.012	0.995	1.030	0.634	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
survive	as1	value	1.008	0.993	1.024	0.698	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
rop_severe	ivh*	1-IVH	8.648	5.983	12.501	<0.001	NA
rop_severe	resp_supp_imv*	1-yes	5.269	4.804	5.779	<0.001	NA
rop_severe	feeding*	value	0.630	0.618	0.642	<0.001	NA
rop_severe	transfusion*	value	1.577	1.484	1.676	<0.001	NA
rop_severe	inotropic*	value	1.246	1.209	1.285	<0.001	NA
rop_severe	pda_medical*	1-yes	2.372	1.918	2.933	<0.001	NA
rop_severe	blood_culture*	value	1.173	1.122	1.226	<0.001	NA
rop_severe	fio2_raw*	value	1.043	1.041	1.045	<0.001	NA
rop_severe	resp_supp_agg_cum_day_qw*	value	1.054	1.050	1.057	<0.001	NA
rop_severe	resp_supp_nippv*	1-yes	3.514	3.200	3.858	<0.001	NA
rop_severe	plt*	value	1.240	1.191	1.291	<0.001	NA
rop_severe	bbw_g*	value	0.997	0.997	0.997	<0.001	NA
rop_severe	steroid_postnatal*	value	1.805	1.665	1.956	<0.001	NA
rop_severe	aki*	value	1.455	1.304	1.623	<0.001	NA
rop_severe	fio2_cum_day_qw*	value	1.026	1.023	1.029	<0.001	NA
rop_severe	resp_supp_cpap*	1-yes	0.384	0.351	0.419	<0.001	NA
rop_severe	resp_supp_comb*	1-yes	4.035	3.374	4.824	<0.001	NA
rop_severe	fio2_cum_level_qw*	value	1.001	1.001	1.001	0.001	NA
rop_severe	pda_surgical*	1-yes	2.286	1.352	3.866	0.001	NA
rop_severe	wbc*	value	1.197	1.099	1.302	0.001	NA
rop_severe	non_nec_surg_abd*	1-NEC with surgery	3.913	1.756	8.719	0.001	NA
rop_severe	sex*	1-male	2.240	2.045	2.453	0.005	NA
rop_severe	pe*	1-yes	0.279	0.238	0.326	0.012	NA
rop_severe	blood_volume*	value	1.124	1.074	1.177	0.021	NA
rop_severe	ga_wk*	value	0.788	0.750	0.828	0.032	NA
rop_severe	ivf*	1-yes	1.684	1.548	1.831	0.044	NA
rop_severe	socioeconomic_status	3-low	0.486	0.432	0.547	0.051
rop_severe	socioeconomic_status	2-medium	0.701	0.641	0.767	0.199
rop_severe	surfactant	value	1.092	1.048	1.138	0.452	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, as1, bbw_g, blood_culture, resp_supp_imv, plt, steroid_antenatal, bbw_z, steroid_postnatal, maternal_age, aki
rop_severe	resuscitation_at_birth	value	1.036	1.014	1.057	0.537	ivh, feeding, pda_medical, bbw_z_qw, blood_volume, inotropic, resp_supp_cpap, ga_wk, as5, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
rop_severe	bhc_z_qw	1-HC z-score <=-1	1.096	0.980	1.226	0.621	fio2_cum_day_qw, resp_supp_agg_cum_day_qw, bbw_z_qw, fio2_cum_level_qw
rop_severe	as5	value	1.026	0.978	1.077	0.848	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
rop_severe	as1	value	0.973	0.928	1.021	0.86	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
bpd	fio2_cum_level_qw*	value	1.001	1.001	1.001	<0.001	NA
bpd	bbw_g*	value	0.998	0.998	0.998	<0.001	NA
bpd	fio2_cum_level_pct*	value	1.014	1.013	1.015	<0.001	NA
bpd	fio2_raw*	value	1.038	1.037	1.040	<0.001	NA
bpd	resp_supp_agg_cum_day_qw*	value	1.037	1.035	1.040	<0.001	NA
bpd_moderate_severe	fio2_cum_level_qw*	value	1.001	1.001	1.001	<0.001	NA
bpd_moderate_severe	bbw_g*	value	0.998	0.998	0.998	<0.001	NA
bpd_moderate_severe	fio2_cum_level_pct*	value	1.013	1.012	1.014	<0.001	NA
bpd_moderate_severe	fio2_raw*	value	1.040	1.039	1.042	<0.001	NA
bpd_moderate_severe	resp_supp_agg_cum_day_qw*	value	1.041	1.039	1.044	<0.001	NA
eugr_hc	cerebellar_hemorrhage*	3-severe bleeding	31.948	4.493	227.164	<0.001	NA
eugr_hc	ivh*	1-IVH	6.802	5.009	9.236	<0.001	NA
eugr_hc	inotropic*	value	1.242	1.213	1.272	<0.001	NA
eugr_hc	feeding*	value	0.675	0.666	0.684	<0.001	NA
eugr_hc	pda_medical*	1-yes	2.154	1.823	2.544	<0.001	NA
eugr_hc	plt*	value	1.305	1.269	1.342	<0.001	NA
eugr_hc	resp_supp_imv*	1-yes	2.818	2.611	3.042	<0.001	NA
eugr_hc	blood_culture*	value	1.163	1.124	1.203	<0.001	NA
eugr_hc	fio2_raw*	value	1.035	1.033	1.036	<0.001	NA
eugr_hc	transfusion*	value	1.365	1.299	1.434	<0.001	NA
eugr_hc	resp_supp_comb*	1-yes	4.743	4.196	5.360	<0.001	NA
eugr_hc	resp_supp_agg_cum_day_qw*	value	1.041	1.038	1.044	<0.001	NA
eugr_hc	resp_supp_nippv*	1-yes	2.525	2.342	2.723	<0.001	NA
eugr_hc	fio2_cum_level_qw*	value	1.001	1.001	1.001	<0.001	NA
eugr_hc	non_nec_surg_abd*	1-NEC with surgery	4.270	2.423	7.525	<0.001	NA
eugr_hc	aki*	value	1.366	1.243	1.501	<0.001	NA
eugr_hc	resp_supp_cpap*	1-yes	0.650	0.611	0.692	<0.001	NA
eugr_hc	wbc*	value	1.155	1.082	1.233	<0.001	NA
eugr_hc	fio2_cum_day_qw*	value	1.015	1.013	1.018	<0.001	NA
eugr_hc	blood_volume*	value	1.135	1.096	1.176	0.001	NA
eugr_hc	resp_supp_agg_cum_day_pct*	value	1.011	1.010	1.012	0.001	NA
eugr_hc	ischaemic_stroke*	1-ischemia	4.926	2.049	11.843	0.003	NA
eugr_hc	pda_surgical*	1-yes	1.733	1.117	2.689	0.006	NA
eugr_hc	surfactant*	value	1.266	1.225	1.308	0.007	NA
eugr_hc	steroid_postnatal*	value	1.287	1.182	1.400	0.009	NA
eugr_hc	fio2_cum_level_pct*	value	1.007	1.006	1.008	0.018	NA
eugr_hc	ga_wk*	value	0.819	0.793	0.846	0.019	NA
eugr_hc	fio2_cum_day_pct*	value	1.007	1.006	1.008	0.023	NA
eugr_hc	multiple_gestation*	1-yes	1.420	1.337	1.508	0.044	NA
eugr_hc	as1	value	0.886	0.856	0.917	0.185	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
eugr_hc	as5	value	0.892	0.861	0.925	0.256	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
eugr_hc	bbw_g	value	1.000	0.999	1.000	0.317	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, as5, as1, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, steroid_postnatal, maternal_age, aki
eugr_bw	cerebellar_hemorrhage*	3-severe bleeding	36.776	5.171	261.548	<0.001	NA
eugr_bw	feeding*	value	0.646	0.637	0.656	<0.001	NA
eugr_bw	ivh*	1-IVH	4.985	3.431	7.244	<0.001	NA
eugr_bw	inotropic*	value	1.177	1.146	1.209	<0.001	NA
eugr_bw	blood_volume*	value	1.165	1.123	1.208	<0.001	NA
eugr_bw	pda_medical*	1-yes	2.122	1.775	2.537	<0.001	NA
eugr_bw	plt*	value	1.308	1.270	1.348	<0.001	NA
eugr_bw	blood_culture*	value	1.145	1.103	1.190	<0.001	NA
eugr_bw	resp_supp_imv*	1-yes	2.299	2.110	2.506	<0.001	NA
eugr_bw	transfusion*	value	1.331	1.261	1.405	<0.001	NA
eugr_bw	resp_supp_nippv*	1-yes	2.687	2.482	2.909	<0.001	NA
eugr_bw	fio2_raw*	value	1.027	1.025	1.030	<0.001	NA
eugr_bw	resp_supp_comb*	1-yes	4.037	3.508	4.644	<0.001	NA
eugr_bw	wbc*	value	1.239	1.163	1.319	<0.001	NA
eugr_bw	aki*	value	1.392	1.265	1.532	<0.001	NA
eugr_bw	resp_supp_agg_cum_day_qw*	value	1.027	1.024	1.030	<0.001	NA
eugr_bw	non_nec_surg_abd*	1-NEC with surgery	3.651	1.898	7.022	<0.001	NA
eugr_bw	resp_supp_cpap*	1-yes	0.671	0.629	0.717	0.002	NA
eugr_bw	resp_supp_agg_cum_day_pct*	value	1.011	1.010	1.012	0.003	NA
eugr_bw	pda_surgical*	1-yes	1.797	1.131	2.856	0.005	NA
eugr_bw	fio2_cum_level_pct*	value	1.007	1.006	1.008	0.017	NA
eugr_bw	bbw_g	value	0.999	0.999	1.000	0.173	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, as5, as1, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, steroid_postnatal, maternal_age, aki
eugr_bw	fio2_cum_level_qw	value	1.000	1.000	1.000	0.244	bhc_z_qw, bbw_z_qw, resp_supp_cpap
eugr_bw	resuscitation_at_birth	value	1.042	1.024	1.060	0.358	ivh, feeding, pda_medical, bbw_z_qw, blood_volume, inotropic, resp_supp_cpap, ga_wk, as5, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
eugr_bw	surfactant	value	1.070	1.033	1.108	0.471	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, as1, bbw_g, blood_culture, resp_supp_imv, plt, steroid_antenatal, bbw_z, steroid_postnatal, maternal_age, aki
eugr_bw	as1	value	1.049	1.012	1.087	0.612	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
eugr_bw	as5	value	0.969	0.932	1.007	0.744	ivh, feeding, pda_medical, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, ga_wk, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, aki, fio2_raw
eugr_bw	ga_wk	value	0.990	0.957	1.025	0.919	ivh, feeding, pda_medical, bbw_z_qw, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, as5, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, maternal_age, aki
hearing	ivh*	1-IVH	6.278	3.719	10.597	<0.001	NA
hearing	feeding*	value	0.627	0.612	0.642	<0.001	NA
hearing	blood_culture*	value	1.248	1.186	1.313	<0.001	NA
hearing	plt*	value	1.404	1.344	1.466	<0.001	NA
hearing	pda_medical*	1-yes	2.901	2.275	3.700	<0.001	NA
hearing	transfusion*	value	1.481	1.368	1.604	<0.001	NA
hearing	resp_supp_imv*	1-yes	3.179	2.803	3.606	<0.001	NA
hearing	resp_supp_nippv*	1-yes	3.798	3.385	4.261	<0.001	NA
hearing	fio2_raw*	value	1.031	1.028	1.035	<0.001	NA
hearing	wbc*	value	1.225	1.106	1.356	<0.001	NA
hearing	resp_supp_cpap*	1-yes	0.493	0.444	0.547	0.001	NA
hearing	bhc_z*	value	0.735	0.711	0.761	0.003	NA
hearing	bbw_z*	value	0.648	0.615	0.682	0.003	NA
hearing	non_nec_surg_abd*	1-NEC with surgery	3.863	1.448	10.308	0.006	NA
hearing	resp_supp_agg_cum_day_qw*	value	1.029	1.025	1.034	0.007	NA
hearing	bbw_g*	value	0.997	0.997	0.998	0.009	NA
hearing	aki*	value	1.334	1.114	1.598	0.009	NA
hearing	inotropic*	value	1.174	1.125	1.224	0.012	NA
hearing	resp_supp_comb*	1-yes	2.460	1.839	3.291	0.033	NA
hearing	blood_volume	value	1.102	1.036	1.172	0.118	feeding, inotropic
hearing	fio2_cum_day_qw	value	1.009	1.005	1.012	0.276	bhc_z_qw, bbw_z_qw
hearing	bhc_z_qw	1-HC z-score <=-1	1.216	1.060	1.394	0.368	fio2_cum_day_qw, resp_supp_agg_cum_day_qw, bbw_z_qw, fio2_cum_level_qw
hearing	ga_wk	value	0.972	0.921	1.025	0.844	ivh, feeding, pda_medical, bbw_z_qw, blood_volume, inotropic, resp_supp_cpap, resuscitation_at_birth, as5, as1, bbw_g, surfactant, blood_culture, resp_supp_imv, plt, fio2_cum_level_pct, steroid_antenatal, bbw_z, steroid_postnatal, maternal_age, aki
Note:
*, either LB > 1 or UB < 1 and p-value <= 0.05.

Figure 4. Effect size changes before and after adjustment for confounders.

Feature selection

Dimensional reduction

Table 16. Dimensional reduction needed for regression training.

outcome	type	cat	n	pred	epv	min_epv	max_pred
survive*	baseline	0	67	5	14	20	3
survive	residual	0	811	18	46	20	40
rop_severe*	baseline	1	57	5	12	20	2
rop_severe	residual	1	2394	23	105	20	119
bpd	baseline	1	160	1	160	20	8
bpd	residual	1	6720	5	1344	20	336
bpd_moderate_severe	baseline	1	143	1	143	20	7
bpd_moderate_severe	residual	1	6006	5	1202	20	300
eugr_hc	baseline	1	107	3	36	20	5
eugr_hc	residual	1	4494	28	161	20	224
eugr_bw	baseline	1	93	0	Inf	20	4
eugr_bw	residual	1	3906	22	178	20	195
hearing	baseline	1	37	3	13	20	1
hearing	residual	1	1554	17	92	20	77
Note:
*, require dimensional reduction.

Figure 5. Dimensional reduction model weights for predictors of: (A) Severe ROP baseline prediction; and (B) survival baseline prediction. PVE, proportion of variance explained

Predictive modeling

## survive: survive
## rop_severe: survive -> rop_severe
## bpd: survive -> bpd
## bpd_moderate_severe: survive -> bpd -> bpd_moderate_severe
## eugr_hc: survive -> eugr_hc
## eugr_bw: survive -> eugr_bw
## rop_severe: survive -> hearing

Survival prediction

Severe ROP prediction

BPD prediction

Moderate/severe BPD prediction

EUGR-HC prediction

EUGR-BW prediction

Failed hearing test prediction

Model evaluation

Evaluation metrics

Survival baseline

Figure 6. Survival baseline prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

Survival stack

Figure 7. Survival stacked prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

Severe ROP baseline

Figure 8. Severe ROP baseline prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

Severe ROP stack

Figure 9. Severe ROP stacked prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

BPD baseline

Figure 10. BPD baseline prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

BPD stack

Figure 11. BPD stacked prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

Moderate/severe BPD baseline

Figure 12. Moderate/severe BPD baseline prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

Moderate/severe BPD stack

Figure 13. Moderate/severe BPD stacked prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

EUGR-HC baseline

Figure 14. EUGR-HC baseline prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

EUGR-HC stack

Figure 15. EUGR-HC stacked prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

EUGR-BW stack

Figure 16. EUGR-BW stacked prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

Failed hearing test stack

Figure 17. Failed hearing test stacked prediction model evaluation using test set for: (A) calibration plot; (B) decision curve; and (C) ROC curve. Vertical dashed line in panels A and B indicates the chosen threshold. ROC, receiver operating characteristics.

Predictive performance

Table 17. Predictive performance using test set.

model	AUC-ROC	TH	TNR	TPR	PPV	NPV
survive_baseline1	0.89 ( 0.88, 0.89)	0.94	96.74 (95.79, 97.69)	61.85 (60.50, 63.20)	98.99 (98.67, 99.30)	33.08 (32.00, 34.16)
survive_stack	0.84 ( 0.83, 0.84)	0.98	79.82 (78.71, 80.93)	70.25 (70.04, 70.45)	98.95 (98.89, 99.00)	9.04 ( 8.81, 9.27)
rop_severe_baseline2	0.85 ( 0.83, 0.87)	0.30	96.03 (95.31, 96.74)	46.86 (42.37, 51.35)	60.91 (56.10, 65.71)	93.40 (92.56, 94.23)
rop_severe_stack	0.87 ( 0.87, 0.87)	0.34	96.96 (96.89, 97.04)	47.21 (46.60, 47.83)	67.87 (67.17, 68.57)	93.11 (93.00, 93.22)
bpd_baseline2	0.79 ( 0.77, 0.80)	0.48	98.72 (98.31, 99.13)	29.63 (27.01, 32.25)	91.83 (89.25, 94.42)	73.63 (72.42, 74.85)
bpd_stack	0.87 ( 0.87, 0.87)	0.32	85.30 (85.11, 85.50)	70.41 (70.07, 70.75)	71.09 (70.78, 71.39)	84.89 (84.68, 85.10)
bpd_moderate_severe_baseline3	0.80 ( 0.78, 0.81)	0.44	97.02 (96.49, 97.55)	35.25 (32.28, 38.22)	81.65 (77.99, 85.31)	79.42 (78.40, 80.43)
bpd_moderate_severe_stack	0.83 ( 0.83, 0.83)	0.37	95.76 (95.65, 95.87)	45.96 (45.53, 46.40)	81.06 (80.60, 81.52)	81.79 (81.60, 81.98)
eugr_hc_baseline2	0.89 ( 0.88, 0.89)	0.52	97.13 (96.52, 97.75)	31.21 (28.37, 34.06)	78.11 (74.10, 82.13)	81.38 (80.25, 82.51)
eugr_hc_stack	0.91 ( 0.91, 0.91)	0.42	97.72 (97.64, 97.79)	31.56 (31.09, 32.02)	81.16 (80.65, 81.67)	82.08 (81.91, 82.25)
eugr_bw_stack	0.85 ( 0.85, 0.86)	0.44	96.23 (96.13, 96.33)	30.70 (30.22, 31.18)	67.52 (66.78, 68.27)	84.47 (84.29, 84.66)
hearing_stack	0.77 ( 0.76, 0.77)	0.24	95.69 (95.58, 95.79)	28.46 (27.81, 29.11)	42.36 (41.51, 43.21)	92.31 (92.16, 92.47)
Note:
AUC-ROC, area under the curve - receiver operating characteristics; TH, the chosen threshold, ~95% specificity if possible; TNR, true negative rate (specificity), ~95% if possible; TPR, true positive rate (sensitivity/recall); PPV, positive predictive value (precision); NPV, negative predictive value.

Model deployment

Figure 18. A case with ~50% truely-predicted survive and ~20% truely-predicted positives for other outcomes.

Figure 19. Survival trajectories with ~90% truely and 1+ falsely predicted deaths and ~20% falsely predicted survive. Vertical dashed line indicates death age.

Figure 20. Other outcome trajectories with ~20% truely and ~20% falsely predicted deaths among ~50% truely predicted survive.